CN213661940U

CN213661940U - Loudspeaker and electronic terminal

Info

Publication number: CN213661940U
Application number: CN202022485559.1U
Authority: CN
Inventors: 祝赟; 印兆宇; 吴军
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-09
Anticipated expiration: 2030-10-30
Also published as: WO2022088279A1

Abstract

The utility model provides a loudspeaker and an electronic terminal, which comprises a basin frame with an accommodating space, a vibration system fixed on the basin frame, a magnetic circuit system for driving the vibration system and a flexible circuit board electrically connected with the vibration system; the basin frame comprises a first steel ring and a second steel ring, the first steel ring and the second steel ring are enclosed to form an accommodating space, and the first steel ring and the second steel ring are at least partially overlapped and form a welding part used for being welded with the flexible circuit board. Thereby the area of the face of weld on the welding part that makes the formation is greater than the area of single steel ring and flexible circuit board contact, and then increased can with flexible circuit board welded area, and then make the welding that flexible circuit board can be stable on first steel ring and second steel ring, greatly reduced the probability of rosin joint, and then make the tone quality of speaker more stable.

Description

Loudspeaker and electronic terminal

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electroacoustic field especially relates to a speaker and electronic terminal.

[ background of the invention ]

In the current mobile internet era, the number of intelligent mobile terminal devices is increasing continuously, and the requirements for mobile terminals are higher and higher, one of which is the sound quality function requiring high quality.

Some speakers in the correlation technique adopt the steel ring to replace the basin frame, and the flexible circuit board welds on the steel ring usually, but can appear the too little problem of steel ring and flexible circuit board welded part's area of contact, and then lead to flexible circuit board and steel ring welding insecure, and the condition of rosin joint between flexible circuit board and the steel ring takes place occasionally, causes the unstability of tone quality.

Therefore, it is necessary to provide a new speaker and an electronic terminal to solve the above problems.

[ Utility model ] content

An object of the utility model is to provide a speaker and electron terminal, the flexible circuit board welding of this speaker is more firm, and tone quality is more stable.

The technical scheme of the utility model as follows: a loudspeaker comprises a basin frame with a containing space, a vibration system fixed on the basin frame, a magnetic circuit system used for driving the vibration system and a flexible circuit board used for being electrically connected with the vibration system;

the basin frame comprises a first steel ring and a second steel ring, the first steel ring and the second steel ring are enclosed to form the accommodating space, and at least part of the first steel ring and the second steel ring are overlapped and arranged to form a welding part used for welding the flexible circuit board.

As an embodiment of the utility model, the basin frame includes two relative settings first steel ring and two relative settings the second steel ring, two first steel ring and two the second steel ring is connected in turn and is enclosed and close and form accommodating space, the weld part by first steel ring with the overlapping of second steel ring junction sets up and forms.

As an embodiment of the utility model, first steel ring includes first pole portion and certainly first overlapping portion that first pole portion both ends were buckled respectively and are extended formation, the second steel ring include second pole portion and certainly second pole portion both ends buckle respectively and extend formation with the second overlapping portion that first overlapping portion suited, first pole portion perpendicular to second pole portion, first overlapping portion with second overlapping portion overlaps and sets up and forms the welding part.

As an embodiment of the utility model, vibration system is including the vibrating diaphragm that is used for the sound production, the vibrating diaphragm is fixed in on first steel ring and the second steel ring.

As an embodiment of the utility model, the vibrating diaphragm includes the book ring portion, certainly roll over the first fixed part that the outer peripheral edge of ring portion extended to form, certainly the ball top that the inner peripheral edge of book ring portion extended to form, first steel ring with second steel ring difference butt is in on the first fixed part.

As an embodiment of the utility model, the vibrating diaphragm still includes certainly the outer peripheral edges orientation of first fixed part first steel ring with the spacing portion that the second steel ring bending and extending formed, first steel ring with the second steel ring is kept away from one side of ball top portion butt respectively is in on the spacing portion.

As an embodiment of the present invention, the magnetic circuit system includes a magnetic yoke, and the magnetic yoke is fixed on the first steel ring and/or the second steel ring.

As an embodiment of the utility model, the yoke includes second fixed part and the butt portion that is located second fixed part both sides, seted up on the second steel ring with second fixed part adaptation is used for the installation the fixed slot of second fixed part, butt portion butt is in the second steel ring orientation on one side of accommodating space.

As an embodiment of the utility model, flexible circuit board respectively the butt be in on the first steel ring with on the second steel ring, just flexible circuit board distribute in the yoke orientation the both sides of the direction of first steel ring.

The utility model discloses a another technical scheme as follows: an electronic terminal, comprising a terminal body and the speaker as described in any of the above embodiments, the speaker being disposed on the terminal body.

The beneficial effects of the utility model reside in that: the basin frame includes first steel ring and second steel ring, first steel ring and second steel ring enclose to close and form accommodating space, because first steel ring and second steel ring at least part overlap the setting and form and be used for with flexible circuit board welded weld part, thereby the area of the face of weld on the weld part that makes the formation is greater than the area of single steel ring and flexible circuit board contact, and then increased can with flexible circuit board welded area, and then make the welding that flexible circuit board can be stable on first steel ring and second steel ring, greatly reduced the probability of rosin joint, and then make the tone quality of speaker more stable.

[ description of the drawings ]

Fig. 1 is a schematic overall structure diagram of a speaker according to an embodiment of the present invention;

FIG. 2 is an exploded schematic view of the loudspeaker of FIG. 1;

FIG. 3 is a schematic structural view of the basin stand of FIG. 1;

FIG. 4 is a front view of the basin stand of FIG. 1;

FIG. 5 is a cross-sectional view taken at A-A of FIG. 4;

fig. 6 is a schematic view of an overall structure of an electronic terminal according to an embodiment of the present invention;

1. a speaker; 2. a terminal body; 100. a basin stand; 101. an accommodating space; 110. a first steel ring; 111. a first rod portion; 112. a first overlapping portion; 120. a second steel ring; 121. a second rod portion; 122. a second overlapping portion; 123. fixing grooves; 130. welding the part; 131. welding a surface; 200. a vibration system; 210. vibrating diaphragm; 211. a folded ring part; 212. a first fixed part; 213. a ball top; 214. a limiting part; 300. a magnetic circuit system; 310. a magnetic yoke; 311. a second fixed part; 312. an abutting portion; 400. a flexible circuit board; 410. and a bonding pad.

[ detailed description ] embodiments

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

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

Referring to fig. 1-5, an embodiment of the present invention provides a speaker 1, in which the speaker 1 includes a frame 100 having an accommodating space 101, a vibration system 200 fixed on the frame 100, a magnetic circuit 300 for driving the vibration system 200, and a flexible circuit board 400 electrically connected to the vibration system 200.

It should be noted that, in the present embodiment, the part of the vibration system 200 and the part of the magnetic circuit system 300 are not explicitly shown because they do not relate to the invention point, and 200(300) in the drawings refers to not only a part of the structure of the vibration system 200 but also a part of the structure of the magnetic circuit system 300.

Referring to fig. 1 to 5, in an embodiment, the frame 100 includes a first steel ring 110 and a second steel ring 120, the first steel ring 110 and the second steel ring 120 enclose a receiving space 101, the first steel ring 110 and the second steel ring 120 are at least partially overlapped to form a welding portion 130 for welding with the flexible circuit board 400, and the first steel ring 110 and the second steel ring 120 are at least partially overlapped to increase an area of a welding surface 131 on the welding portion 130 to be larger than an area of a single steel ring contacting the flexible circuit board 400, so as to increase an area capable of welding with the flexible circuit board 400, and further to enable the flexible circuit board 400 to be stably welded on the first steel ring 110 and the second steel ring 120, thereby greatly reducing a probability of a false welding, and further enabling a sound quality of the speaker 1 to be more stable.

Preferably, the first steel ring 110 and the second steel ring 120 are at least partially overlapped in a horizontal direction, and the soldering part 130 has a soldering surface 131 parallel to the horizontal plane and used for soldering with the flexible circuit board 400.

Referring to fig. 2 to 5, further, the frame 100 includes two first steel rings 110 disposed opposite to each other and two second steel rings 120 disposed opposite to each other, the two first steel rings 110 and the two second steel rings 120 are alternately connected and enclosed to form an accommodating space 101, and the joints of the first steel rings 110 and the second steel rings 120 are overlapped to form the welding portion 130. Because the welding portion 130 is formed at the connection position of the first steel ring 110 and the second steel ring 120, and only at the connection position of the first steel ring 110 and the second steel ring 120, the widths of the first steel ring 110 and the second steel ring 120 are larger, so that the flexible circuit board 400 is more easily and firmly fixed on the first steel ring 110 and the second steel ring 120, and the widths of other positions of the first steel ring 110 and the second steel ring 120 are consistent with the width of a single steel ring, thereby improving the reasonable utilization of the space by the first steel ring 110 and the second steel ring 120.

Referring to fig. 3 and 5, further, the first steel ring 110 includes a first rod portion 111 and a first overlapping portion 112 formed by bending and extending from two ends of the first rod portion 111, the second steel ring 120 includes a second rod portion 121 and a second overlapping portion 122 formed by bending and extending from two ends of the second rod portion 121 and corresponding to the first overlapping portion 112, the first rod portion 111 is perpendicular to the second rod portion 121, and the first overlapping portion 112 and the second overlapping portion 122 are overlapped to form a welding portion 130. Specifically, the two first rod parts 111 are relatively parallel and spaced, the two second rod parts 121 are relatively parallel and spaced, the two first steel rings 110 and the two second steel rings 120 enclose a rectangular accommodating space 101, and the welding parts 130 are located at four corners of the rectangle.

Preferably, the first overlapping portion 112 and the second overlapping portion 122 are welded and fixed together, and specifically, the first overlapping portion 112 and the second overlapping portion 122 may be fixed together by laser spot welding.

It should be noted that, in some embodiments, the first steel ring 110 is a closed ring, and the second steel ring 120 is disposed at the corners of the first steel ring 110 in an overlapping manner in the horizontal direction, for example, the first steel ring 110 is a rectangular ring, and the second steel ring 120 is disposed at four corners of the first steel ring 110 in an overlapping manner in the horizontal direction.

Of course, in some embodiments, the position where the first steel ring 110 and the second steel ring 120 overlap may also be a non-corner.

In one embodiment, the flexible circuit board 400 is soldered to the soldering part 130 through the soldering land 410.

In an embodiment, the flexible circuit board 400 abuts on the first steel ring 110 and the second steel ring 120 respectively, and preferably, the flexible circuit board 400 is fixed on the first steel ring 110 and the second steel ring 120 by gluing.

In addition, by increasing the overlapping portion of the first steel ring 110 and the second steel ring 120, the gluing area of the flexible circuit board 400 and the first steel ring 110 and the second steel ring 120 can be increased, the stability of gluing the flexible circuit board 400 and the first steel ring 110 and the second steel ring 120 is increased, and the flexible circuit board 400 is not easy to fall off from the first steel ring 110 and the second steel ring 120.

Referring to fig. 1 and fig. 2, in an embodiment, the vibration system 200 includes a diaphragm 210 for generating sound and a voice coil for driving the diaphragm 210 to vibrate and generate sound, and the diaphragm 210 is fixed on the first steel ring 110 and the second steel ring 120.

Specifically, the diaphragm 210 includes a folded ring portion 211, a first fixing portion 212 formed by extending from an outer periphery of the folded ring portion 211, and a spherical top portion 213 formed by extending from an inner periphery of the folded ring portion 211, and the first steel ring 110 and the second steel ring 120 are respectively abutted on the first fixing portion 212.

It should be noted that the horizontal direction in the above embodiment refers to a direction parallel to the ball top 213.

Referring to fig. 2, in an embodiment, the diaphragm 210 further includes a limiting portion 214 formed by bending and extending from an outer periphery of the first fixing portion 212 toward the first steel ring 110 and the second steel ring 120, and sides of the first steel ring 110 and the second steel ring 120 away from the ball top 213 are respectively abutted on the limiting portion 214.

Referring to fig. 1 and 2, in an embodiment, the magnetic circuit system 300 includes a magnetic yoke 310, a main magnetic steel disposed in the center of the magnetic yoke 310, a sub magnetic steel disposed on the magnetic yoke 310 and surrounding the main magnetic steel to form a magnetic gap, a main pole core attached above the main magnetic steel, and a sub pole core surrounding the main pole core, attached to the sub magnetic steel, and fixed on a bracket, wherein the magnetic yoke 310 is fixed on the first steel ring 110 and/or the second steel ring 120.

Preferably, the yoke 310 is fixed to the second steel ring 120.

Referring to fig. 2, specifically, the yoke 310 includes a second fixing portion 311 and abutting portions 312 located at two sides of the second fixing portion 311, the second steel ring 120 is opened with a fixing groove 123 adapted to the second fixing portion 311 and used for mounting the second fixing portion 311, and the abutting portions 312 abut on a side of the second steel ring 120 facing the ball top portion 213.

Specifically, the fixing groove 123 is opened on the second lever section 121, and the abutting section 312 abuts on the side of the second lever section 121 toward the ball top section 213.

Referring to fig. 1, specifically, the flexible circuit board 400 is distributed on two sides of the magnetic yoke 310 facing the first steel ring 110.

Referring to fig. 6, another embodiment of the present invention provides an electronic terminal, which includes a terminal body 2 and a speaker 1 as in any of the above embodiments, the speaker 1 is disposed on the terminal body 2, in the speaker 1 in the above embodiments, since the first steel ring 110 and the second steel ring 120 are at least partially overlapped and form the soldering part 130 for soldering with the flexible circuit board 400, so that the area of the soldering face 131 on the soldering part 130 is formed to be larger than the area of the single steel ring contacting the flexible circuit board 400, thereby increasing the welding area with the flexible circuit board 400, enabling the flexible circuit board 400 to be stably welded on the first steel ring 110 and the second steel ring 120, greatly reducing the probability of cold welding, thereby, the sound quality of the speaker 1 is more stable, and the performance of the electronic terminal using the speaker 1 in the above embodiment is better.

The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. A loudspeaker, characterized by: the vibration device comprises a basin frame with an accommodating space, a vibration system fixed on the basin frame, a magnetic circuit system used for driving the vibration system and a flexible circuit board used for being electrically connected with the vibration system;

2. The loudspeaker of claim 1, wherein: the basin frame includes two relative settings first steel ring and two relative settings the second steel ring, two first steel ring and two the second steel ring is connected in turn and is enclosed and close and form accommodating space, the welding part by first steel ring with the overlapping of second steel ring junction sets up and forms.

3. The loudspeaker of claim 2, wherein: the first steel ring comprises a first rod part and a first overlapping part formed by bending and extending two ends of the first rod part respectively, the second steel ring comprises a second rod part and a second overlapping part formed by bending and extending two ends of the second rod part respectively and corresponding to the first overlapping part, the first rod part is perpendicular to the second rod part, and the first overlapping part and the second overlapping part are arranged in an overlapping mode and form the welding part.

4. The loudspeaker of claim 1, wherein: the vibration system comprises a vibrating diaphragm for sounding, and the vibrating diaphragm is fixed on the first steel ring and the second steel ring.

5. The loudspeaker of claim 4, wherein: the vibrating diaphragm comprises a folded ring part, a first fixing part formed by extending the outer periphery of the folded ring part, and a spherical top part formed by extending the inner periphery of the folded ring part, wherein the first steel ring and the second steel ring are respectively abutted to the first fixing part.

6. The loudspeaker of claim 5, wherein: the diaphragm also comprises a limiting part which is formed by bending and extending the first steel ring and the second steel ring from the outer peripheral edge of the first fixing part, and one side of the top of the ball, which is far away from the first steel ring and the second steel ring, is respectively abutted on the limiting part.

7. The loudspeaker according to any one of claims 1-6, wherein: the magnetic circuit system comprises a magnetic yoke which is fixed on the first steel ring and/or the second steel ring.

8. The loudspeaker of claim 7, wherein: the magnet yoke comprises a second fixing part and abutting parts located on two sides of the second fixing part, fixing grooves matched with the second fixing part and used for installing the second fixing part are formed in the second steel ring, and the abutting parts abut against one side, facing the accommodating space, of the second steel ring.

9. The loudspeaker of claim 8, wherein: the flexible circuit boards are respectively abutted against the first steel ring and the second steel ring, and the flexible circuit boards are distributed on two sides of the magnetic yoke in the direction towards the first steel ring.

10. An electronic terminal, characterized by: comprising a terminal body and a loudspeaker according to any of the claims 1-9, arranged on the terminal body.