CN216721563U

CN216721563U - Open type rear-cavity receiver

Info

Publication number: CN216721563U
Application number: CN202123223884.1U
Authority: CN
Inventors: 余在传; 陈�峰; 余亮; 张万忠
Original assignee: Jiaxing Zeying Electronic Technology Co ltd
Current assignee: Jiaxing Zeying Electronic Technology Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-06-10
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses an open type rear-cavity telephone receiver, which has the technical scheme that: the utility model provides an open back chamber receiver, includes support frame, voice coil loudspeaker voice coil, vibrating diaphragm, magnet steel, the support frame is provided with the protecgulum, be formed with the antetheca between protecgulum and the vibrating diaphragm, vibrating diaphragm deviates from and is formed with the back chamber between one side of protecgulum and the support frame, the passageway that supplies back chamber and outside air intercommunication is seted up to the support frame, the support frame is provided with to cover closes the passageway and realizes the damping fin that plays the damping effect to the air through the passageway, the damping fin is made by flexible material. The utility model realizes the rear cavity damping effect through the damping sheet, reduces the material cost and the process cost of the support frame, and improves the performance of the telephone receiver.

Description

Open type rear-cavity receiver

Technical Field

The utility model relates to the field of telephone receivers, in particular to an open type rear-cavity telephone receiver.

Background

The Receiver is also called Receiver, and English is Receiver. An electroacoustic device for converting an audio electric signal into an acoustic signal without acoustic leakage (or a 3.2 type high/low leakage loop according to ITU standard) is widely used in communication terminal devices such as mobile phones, fixed phones, and hearing aids to reproduce audio (voice and music). The traditional telephone needs a receiver with a flat low-frequency to high-frequency curve, needs to adopt a closed back cavity and air damping mode design and adopts a closed back cavity design, so that the whole volume of the receiver is increased, and the material and process cost are increased simultaneously

Therefore, there is a need for an improved structure that overcomes the above-mentioned deficiencies.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an open type rear-cavity telephone receiver, which realizes the damping effect of a rear cavity through a damping sheet, reduces the material cost and the process cost of a support frame, and improves the performance of the telephone receiver.

The technical purpose of the utility model is realized by the following technical scheme: the utility model provides an open back chamber receiver, includes support frame, voice coil loudspeaker voice coil, vibrating diaphragm, magnet steel, the support frame is provided with the protecgulum, be formed with the protecgulum between protecgulum and the vibrating diaphragm, the vibrating diaphragm deviates from and is formed with the back chamber between one side of protecgulum and the support frame, the support frame is seted up and is supplied the passageway of back chamber and outside air intercommunication, the support frame is provided with to cover and closes the passageway and realize the damping fin that plays the damping effect to the air through the passageway, the damping fin is made by flexible material.

The utility model is further provided with: the support frame is provided with a plurality of glue dispensing holes for installing the damping fins, the glue dispensing holes are respectively arranged around the channel, and glue for fixing the damping fins is arranged in the glue dispensing holes.

The utility model is further provided with: the passageway is the arc setting, the arc center of passageway is located voice coil loudspeaker voice coil central point puts, the point is glued the hole and is set up to two, and two point are glued the hole and are symmetrically set up in the both sides of passageway arc direction.

The utility model is further provided with: the support frame is provided with a reinforcing rib which can improve the strength of the support frame.

The utility model is further provided with: the utility model discloses a voice coil loudspeaker voice coil support, including support frame, magnet steel, rack, magnet steel lateral wall and voice coil loudspeaker voice coil activity, the support frame central point puts and has seted up the mounting groove be provided with the rack in the mounting groove, the magnet steel is fixed in the rack, the rack is cylindricly, the magnet steel lateral wall leaves the space that supplies the voice coil loudspeaker voice coil activity between the rack inner wall.

The utility model is further provided with: the rack lateral wall is provided with the conflict bulge loop of contradicting in the mounting groove lateral wall and realizing that the rack is fixed with in the mounting groove.

In conclusion, the utility model has the following beneficial effects:

during the use, realize that the vibrating diaphragm produces the vibration through voice coil loudspeaker voice coil circular telegram, after the vibrating diaphragm vibrates, the chamber before realizing, the air compression release in the back chamber, close the passageway through the damping fin lid, play corresponding damping effect, when the vibrating diaphragm removes towards the back chamber promptly, the air compression of back intracavity, the air slowly flows out from passageway and damping fin and support frame binding face, when the chamber removes before the party vibrating diaphragm moves towards, the outside air passes through the damping fin and slowly flows in the back intracavity with support frame binding face position, thereby realize realizing the damping effect through the damping fin.

The damping fin is convenient to install through the glue dispensing hole, namely when the damping fin is installed, the damping fin is attached to the outer surface of the support frame, and then glue dispensing is carried out at the glue dispensing hole, so that the effect of conveniently fixing the damping fin is achieved.

Through magnet steel device in the rack to install the rack in the mounting groove, realize conveniently assembling magnet steel and voice coil loudspeaker voice coil effect, and reach the effect that promotes the assembly precision, conveniently block the rack in the mounting groove through the bulge loop of contradicting, conveniently glue at the clearance position point of mounting groove and rack lateral wall in addition.

Drawings

FIG. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is a schematic view of the present invention with the damping plate hidden.

Names of the corresponding components indicated by the numbers in the drawings: 1. a support frame; 2. a voice coil; 3. a vibrating diaphragm; 4. magnetic steel; 5. a front cover plate; 6. a vent hole; 7. a front cavity; 8. a rear cavity; 9. a channel; 10. a damping fin; 11. dispensing holes; 12. reinforcing ribs; 13. mounting grooves; 14. placing a rack; 15. against the convex ring.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the utility model easy to understand, the utility model is further described with reference to the figures and the specific embodiments.

As shown in fig. 1 to 4, the open type back cavity receiver provided by the present invention includes a support frame 1, a voice coil 2, a vibrating diaphragm 3, and a magnetic steel 4, wherein the support frame 1 is provided with a front cover plate 5, the front cover plate 5 is provided with a plurality of vent holes 6, and a front cavity 7 is formed between the front cover plate 5 and the vibrating diaphragm 3. One side that vibrating diaphragm 3 deviates from the protecgulum is formed with rear chamber 8 between 1 with the support frame, support frame 1 is seted up and is supplied rear chamber 8 and outside air intercommunication's passageway 9 to realize that rear chamber 8 is open design through passageway 9. The channel 9 is arc-shaped, and the arc center of the channel 9 is located at the center of the voice coil 2. The support frame 1 is provided with a damping fin 10 which covers the channel 9 and achieves a damping effect on air passing through the channel 9, the damping fin 10 is located on the outer surface of the support frame 1, and the damping fin 10 is made of flexible materials.

During the use, realize vibrating diaphragm 3 through 2 circular telegrams of voice coil loudspeaker voice coil and produce the vibration, vibrating diaphragm 3 vibrates the back, realize antechamber 7, the air compression release in the back chamber 8, close passageway 9 through damping fin 10 lid, play corresponding damping effect, when vibrating diaphragm 3 removes towards back chamber 8 promptly, the air compression in the back chamber 8, the air flows slowly from passageway 9 and damping

fin

10 and 1 binding face of support frame, when party vibrating diaphragm 3 removes towards antechamber 7, the outside air passes through damping

fin

10 and 1 binding face position of support frame and slowly flows into in the back chamber 8, thereby realize realizing the damping effect through damping fin 10.

The support frame 1 is provided with a plurality of glue dispensing holes 11 for installing the damping fins 10, the glue dispensing holes 11 are respectively arranged around the channel 9, the glue dispensing holes 11 are arranged into two, the two glue dispensing holes 11 are symmetrically arranged on two sides of the channel 9 in the arc direction, and glue for fixing the damping fins 10 is arranged in the glue dispensing holes 11. Through dispensing hole 11 easy to assemble damping fin 10, when installation damping fin 10, damping fin 10 laminates in support frame 1 surface promptly, then glues in dispensing hole 11 position and glue to reach the effect of conveniently fixing damping fin 10.

The strut is built-in to have the strengthening rib 12 that possesses 1 intensity of promotion support frame to put at support frame 1 central point and seted up mounting groove 13 be provided with rack 14 in the mounting groove 13, magnet steel 4 is fixed in rack 14, rack 14 is cylindric, the space that supplies the activity of voice coil loudspeaker voice coil 2 is left to the magnet steel 4 lateral wall between rack 14 inner wall. The side wall of the placing frame 14 is provided with a protruding abutting ring 15 which abuts against the side wall of the mounting groove 13 and realizes that the placing frame 14 is fixed in the mounting groove 13. Install in rack 14 through magnet steel 4 to install rack 14 in mounting groove 13, realize conveniently assembling magnet steel 4 and voice coil loudspeaker voice coil 2 effect, and reach the effect that promotes the assembly precision, conveniently block rack 14 in mounting groove 13 through conflict bulge loop 15, conveniently glue at the clearance position point of mounting groove 13 and rack 14 lateral wall in addition.

In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the purpose of clarity and convenience of description of the technical solutions, and thus, should not be construed as limiting the present invention.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an open back chamber receiver, includes support frame (1), voice coil loudspeaker voice coil (2), vibrating diaphragm (3), magnet steel (4), its characterized in that: support frame (1) is provided with protecgulum (5), be formed with vestibule (7) between protecgulum (5) and vibrating diaphragm (3), vibrating diaphragm (3) deviate from one side of protecgulum and be formed with back chamber (8) between support frame (1), support frame (1) is seted up and is supplied passageway (9) of back chamber (8) and outside air intercommunication, support frame (1) is provided with to cover and closes passageway (9) and realize damping fin (10) to the air through passageway (9) play damping effect, damping fin (10) are made by flexible material.

2. The open type headphone of claim 1, wherein: the support frame (1) is provided with a plurality of glue dispensing holes (11) for mounting the damping fins (10), the glue dispensing holes (11) are respectively arranged around the channel (9), and glue for fixing the damping fins (10) is arranged in the glue dispensing holes (11).

3. The open type headphone of claim 2, wherein: passageway (9) are the arc setting, the arc center of passageway (9) is located voice coil loudspeaker voice coil (2) central point puts, point gum hole (11) set up to two, and two point gum holes (11) symmetry set up in the both sides of passageway (9) arc direction.

4. The open type headphone of claim 1, wherein: the support frame (1) is internally provided with a reinforcing rib (12) for improving the strength of the support frame (1).

5. The open type headphone of claim 1, wherein: support frame (1) central point puts and has seted up mounting groove (13) be provided with rack (14) in mounting groove (13), magnet steel (4) are fixed in rack (14), rack (14) are cylindricly, magnet steel (4) lateral wall leaves the space that supplies voice coil loudspeaker voice coil (2) activity between rack (14) inner wall.

6. The open type headphone of claim 4, wherein: the side wall of the placing frame (14) is provided with a protruding abutting ring (15) which abuts against the side wall of the mounting groove (13) and realizes that the placing frame (14) is fixed in the mounting groove (13).