CN217428309U

CN217428309U - Balanced armature receiver and electronic equipment

Info

Publication number: CN217428309U
Application number: CN202220470437.1U
Authority: CN
Inventors: 黄环东; 张红庆
Original assignee: Zhongke Shengtemei Suzhou Acoustic Technology Co ltd
Current assignee: Zhongke Shengtemei Suzhou Acoustic Technology Co ltd
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-09-13
Anticipated expiration: 2032-03-07

Abstract

The utility model discloses a balanced armature receiver and an electronic device, wherein the balanced armature receiver comprises a first shell, a second shell and a third shell, wherein the first shell comprises a top wall and a first side wall extending outwards from the periphery of the top wall; the second shell is connected with the first shell and comprises a bottom wall and a second side wall extending outwards from the periphery of the bottom wall; the motor assembly is connected with the bottom wall and comprises a reed which is arranged opposite to the bottom wall, the reed is provided with a first end face which faces the bottom wall, and the first end face is higher than the second side wall. The utility model discloses a balanced armature receiver and electronic equipment can effectively promote the equipment precision, improves the acoustic performance.

Description

Balanced armature receiver and electronic equipment

Technical Field

The utility model relates to an acoustoelectric conversion field, in particular to balanced armature receiver and electronic equipment.

Background

A balanced armature receiver is an acoustical-electrical converter, which is generally used as a sound generating device for converting electrical signals into sound, mainly for earphones, hearing aids, sound generating wearing devices and sound generating units of sound generating electronic products.

The shell of the existing telephone receiver is spliced by an upper shell and a lower shell which are designed to be equal in height usually, the shell is limited, and a reed, a jaw iron, a magnet and a vibrating diaphragm assembly in a sound generating unit can only be assembled outside the shell and then uniformly installed in the shell.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a balanced armature receiver and electronic equipment promotes the equipment precision, improves the acoustic performance.

In order to solve the technical problem, on the one hand, the utility model provides a balanced armature receiver, a serial communication port, include: the first shell comprises a top wall 11 and a first side wall 12 extending outwards from the periphery of the top wall 11; the second shell is connected with the first shell and comprises a bottom wall and a second side wall extending outwards from the periphery of the bottom wall. The motor assembly is connected with the bottom wall and comprises a reed which is arranged opposite to the bottom wall, the reed is provided with a first end face facing the bottom wall, and the first end face is higher than the second side wall.

Preferably, the motor assembly further comprises a blade connected to the bottom wall, and the blade and the bottom wall surround to form a magnetic conductive loop.

Preferably, the blade of a sword iron includes first magnetizer and connects first magnetizer both ends, and relative second magnetizer and the third magnetizer that sets up, second magnetizer and third magnetizer respectively with the diapire links to each other, first magnetizer with the diapire sets up relatively.

Preferably, the motor assembly further comprises a first magnet and a second magnet which are oppositely arranged between the blade iron and the bottom wall, and a first gap for the reed to penetrate through is formed between the first magnet and the second magnet.

Preferably, the motor assembly further includes a coil disposed on one side of the blade, the coil has a second gap through which the spring is inserted, and the second gap is aligned with the first gap.

Preferably, the reed includes the kink and connects fixed part and the motion portion that kink both ends and relative setting, fixed part fixed connection be in outside the sword iron, the motion portion activity is worn to establish in second clearance and the first clearance.

Preferably, the second side wall is provided with one or more grooves for the lead wires of the coil to penetrate through.

Preferably, the receiver further comprises a diaphragm assembly disposed in the first housing and a driving member connected between the diaphragm assembly and the spring plate.

Preferably, the first shell is provided with one or more sound outlet holes.

In another aspect, the present invention further provides an electronic device, including the balanced armature receiver.

Compared with the prior art, the utility model has the advantages of it is following:

the utility model discloses a balanced armature receiver adopts the first casing and the second casing of unequal height design, and the first terminal surface that sets up the reed towards the diapire is higher than the second lateral wall setting of second casing, makes the reed can assemble to the diapire after all at the jaw iron, magnet, coil, and the reinstallation is not hindered by the second lateral wall of second casing, and the motor element exposes the part of second casing more, easily carries out accurate location to the part installation, has both promoted packaging efficiency, has improved assembly precision and stability again, greatly reduced manufacturing cost;

in a preferred embodiment, the jaw iron is in an open structure, and the magnetic conductive loop is directly formed by the jaw iron and the bottom wall of the second shell in a surrounding manner, so that a mouth-shaped closed structure is eliminated, and the assembly process is further simplified.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely illustrative for helping the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. The skilled person in the art can, under the teaching of the present invention, choose various possible shapes and proportional dimensions to implement the invention according to the specific situation. In the drawings:

fig. 1 is a perspective view of a balanced armature receiver of the present invention;

fig. 2 is an exploded view of the balanced armature receiver of the present invention;

fig. 3 is a cross-sectional view of the balanced armature receiver of the present invention;

fig. 4 is a sectional view showing a viewing direction in which the motor assembly and the second housing are assembled according to the present invention;

fig. 5 is a cross-sectional view of another orientation of the motor assembly and second housing of the present invention when assembled;

fig. 6 is a schematic view of the assembly process of the motor assembly and the second housing according to the present invention;

fig. 7 is a schematic structural diagram of a second housing according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a second housing according to another embodiment of the present invention;

shown in the figure:

1. a first housing; 11. a top wall; 12. a first side wall; 13. a front cavity; 14. a rear cavity; 15. a sound outlet; 2. a second housing; 21. a bottom wall; 22. a second side wall; 221. a groove; 3. a diaphragm assembly; 31. a fixing frame; 32. a vibrating plate; 33. a film; 41. a reed; 411. a first end face; 412. a bent portion; 413. a fixed part; 414. a moving part; 415. an extension portion; 42. a coil; 421. a second gap; 422. a lead wire; 43. a blade of a sword iron; 431. a first magnetizer; 432. a second magnetizer; 433. a third magnetizer; 441. a first magnet; 442. a second magnet; 443. a first gap; 5. a drive member;

Detailed Description

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 8, the balanced armature receiver according to a preferred embodiment of the present invention comprises a first casing 1 and a second casing 2 which can be mutually covered to form a cavity, wherein the first casing 1 comprises a top wall 11 and a first side wall 12 extending outward from the periphery of the top wall 11, the second casing 2 comprises a bottom wall 21 and a second side wall 22 extending outward from the periphery of the bottom wall 21, and when the first casing 1 and the second casing 2 are covered, the first side wall 12 is connected with the second side wall 22.

The balanced armature receiver as shown in fig. 2 and 3 further comprises a diaphragm assembly 3, a motor assembly and a driving member 5 connected between the diaphragm assembly 3 and the motor assembly. The diaphragm assembly 3 is disposed in the first housing 1 and divides the cavity into a front cavity 13 and a back cavity 14. The diaphragm assembly 3, the top wall 11 and a part of the first side wall 12 surround to form a front cavity 13, one or more sound outlet holes 15 communicated with the front cavity 13 are formed in the first side wall 12, and sound generated by the diaphragm assembly 3 in the front cavity is transmitted to the outside through the sound outlet holes 15.

The diaphragm assembly 3 includes a fixing frame 31, a vibrating plate 32, and a film 33. The fixing frame 31 is mounted on the first sidewall 12 of the first housing 1, the fixing frame 31 is annularly wound around the periphery of the vibrating plate 32, only one end of the vibrating plate 32 is elastically connected to the fixing frame 31, and gaps are present between the remaining regions and the fixing frame 31 to provide a displacement space for the vibrating plate 32 to vibrate up and down. The diaphragm 33 is covered on the fixed frame 31 and the vibrating plate 32, one end of the driving member 5 is fixed to the vibrating plate 32 at the end away from the end connected to the fixed frame 31, and the driving member 5 drives the vibrating plate 32 to move up and down to drive the diaphragm 33 to vibrate to generate sound. Preferably, the sound outlet 15 is provided near one end of the driver 5.

The diaphragm assembly 3 surrounds the second sidewall 22, the bottom wall 21 and the remaining first sidewall 12 to form a back cavity 14, and the motor assembly is disposed in the back cavity 14. Specifically, the motor assembly is connected to the bottom wall 21 and includes a spring 41, a coil 42, a yoke 43, and a magnet.

As shown in fig. 5, to facilitate the assembly of the yoke 43 and the magnet, the yoke 43 has an open structure and is connected to the bottom wall 21 to form a magnetic conductive loop. Preferably, the jaw iron 43 includes a first magnetizer 431, and a second magnetizer 432 and a third magnetizer 433 connected to two ends of the first magnetizer 431 and disposed oppositely, the second magnetizer 432 and the third magnetizer 433 are respectively connected to the bottom wall 21, the first magnetizer 431 is disposed opposite to the bottom wall 21, the bottom wall 21 is made of a magnetic conductive material, and the jaw iron 43 and the bottom wall 21 surround to form a magnetic conductive loop. The jaw iron cancels a mouth-shaped sealing structure, and further simplifies the assembly process of the jaw iron and the magnet. The magnets include a first magnet 441 and a second magnet 442 which are oppositely disposed between the yoke 43 and the bottom wall 21, and in this embodiment, the first magnet 441 is disposed on an end surface of the first magnetic conductor 431 facing the bottom wall 21, the second magnet 442 is disposed on an end surface of the bottom wall 21 facing the first magnetic conductor 431, and a first gap 443, through which the spring plate 41 passes, is formed between the first magnet 441 and the second magnet 442. The coil 42 is provided on one side of the yoke 43 and has a second gap 421 into which the spring plate 41 is inserted, and the second gap 421 is preferably provided to be aligned with the first gap 443.

As shown in fig. 4 and 5, the spring 41 is disposed opposite to the bottom wall 21, and has one end fixedly connected to the outside of the blade 43 and the other end movably inserted into the first gap 443 and the second gap 421. The reed 41 has the first end face 411 that sets up towards the diapire 21, in order to facilitate the assembly of the reed 41, in this embodiment, the first end face 411 is higher than the second lateral wall 22, so design, can assemble the sword iron 43, the magnet, the coil 42 to the diapire 21 earlier, install the reed 41, do not receive the hindrance of the second lateral wall of the second casing 2, and the motor assembly exposes the part of the second casing 2 more, easily carry out accurate positioning to the spare part installation, both promoted the packaging efficiency, improved the packaging accuracy and stability again, greatly reduced manufacturing cost, thereby reduce the assembly accuracy that installation motor assembly may cause after assembling the reed, stability performance, acoustic performance scheduling problem. Specifically, the spring 41 includes a bending portion 412, and a fixing portion 413 and a moving portion 414 connected to two ends of the bending portion 412 and disposed oppositely, the bending portion 412 is disposed near the coil 42, the fixing portion 413 is fixedly connected to the outside of the yoke 43, and the moving portion 414 is movably disposed in the second gap 421 and the first gap 443 in sequence. The end surface of the moving part 414 facing the bottom wall 21 is the first end surface 411, that is, the end surface of the second side wall 22 facing the bottom wall 21 is lower than the end surface of the moving part 414 of the spring plate 41, and the spring plate can be easily mounted to the corresponding position avoiding the block of the second housing 2.

The moving part 414 of the reed 41 includes an extension 415 exposed out of the first gap 443, the other end of the driving member 5 is fixed on the extension 415, and when a converted electrical signal is applied to the coil 42, the moving part 414 of the reed is magnetized to move up and down between the first magnet 441 and the second magnet 442, and the vibrating plate 32 is driven to move by the driving member 5, so that air is blown to make a sound, and the sound is transmitted to the outside through the sound outlet 15.

To facilitate the leading-out of the lead 422 of the coil 42, one or more grooves 221 are opened on one end of the second sidewall 22 near the coil 42, and when the coil 42 is mounted on the bottom wall 21, the lead 422 is directly led out through the groove 221. It can be understood that the size, shape and number of the grooves 221 can be designed according to actual requirements, as shown in fig. 6, two independent u-shaped grooves are formed at one end of the second side wall 22 close to the coil 42, and the two u-shaped grooves are separated by the raised second side wall 22; alternatively, as shown in fig. 7, a complete u-shaped groove is formed at one end of the second side wall 22 close to the coil 42, and the second side wall 22 at the u-shaped groove is lower than the second side wall 22 at other parts, which is not further limited herein.

The utility model also provides an electronic equipment, including the receiver of above-mentioned structure, this electronic equipment can obtain better acoustic effect.

It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided would be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of the subject matter that is disclosed herein is not intended to forego such subject matter, nor should the applicants be construed as having contemplated such subject matter as being part of the disclosed subject matter.

Claims

1. A balanced armature receiver, comprising:

a first housing (1) including a top wall (11) and a first side wall (12) extending outwardly from the periphery of the top wall (11);

the second shell (2) is connected with the first shell (1) and comprises a bottom wall (21) and a second side wall (22) extending outwards from the periphery of the bottom wall (21);

the motor assembly is connected with the bottom wall (21) and comprises a reed (41) arranged opposite to the bottom wall (21), the reed (41) is provided with a first end surface (411) arranged towards the bottom wall (21), and the first end surface (411) is arranged higher than the second side wall (22).

2. A balanced armature receiver according to claim 1 in which the motor assembly further comprises a yoke (43) attached to the base wall (21), the yoke (43) and base wall (21) surrounding a magnetically conductive loop.

3. The balanced armature receiver according to claim 2, wherein the yoke (43) comprises a first magnetic conductor (431) and a second magnetic conductor (432) and a third magnetic conductor (433) connected to two ends of the first magnetic conductor (431) and disposed opposite to each other, the second magnetic conductor (432) and the third magnetic conductor (433) are respectively connected to the bottom wall (21), and the first magnetic conductor (431) is disposed opposite to the bottom wall (21).

4. A balanced armature receiver according to claim 2 in which the motor assembly further comprises first (441) and second (442) magnets oppositely disposed between the yoke (43) and the bottom wall (21), a first gap (443) being formed between the first (441) and second (442) magnets for the reed (41) to pass through.

5. The balanced armature receiver according to claim 4, wherein the motor assembly further comprises a coil (42) disposed at one side of the yoke (43), the coil (42) having a second gap (421) for the spring plate (41) to pass through, the second gap (421) being aligned with the first gap (443).

6. The balanced armature receiver according to claim 5, wherein the spring plate (41) comprises a bending part (412), and a fixing part (413) and a moving part (414) connected to two ends of the bending part (412) and disposed oppositely, the fixing part (413) is fixedly connected to the outside of the blade iron (43), and the moving part (414) is movably disposed in the second gap (421) and the first gap (443).

7. A balanced armature receiver according to claim 5, characterized in that said second side wall (22) is provided with one or more notches (221) for the lead wires (422) of said coil (42) to pass through.

8. A balanced armature receiver according to any of the claims 1-7, characterized in that the receiver further comprises a diaphragm assembly (3) arranged in the first housing (1) and a driver (5) connected between the diaphragm assembly (3) and a spring (41).

9. A balanced armature receiver according to claim 8, characterized in that the first housing (1) is provided with one or more sound outlet holes (15).

10. An electronic device comprising a balanced armature receiver according to any of claims 1-9.