CN220273854U - Speaker structure of noise reduction earphone - Google Patents

Abstract

The utility model discloses a loudspeaker structure of a noise reduction earphone, which comprises an earphone shell, wherein an inner cavity is formed in the end part of the earphone shell, a shell cover is arranged at the end part of the earphone shell, a protection barrel is arranged at the top of the shell cover, an annular groove is formed in the edge of the end part of the earphone shell, a fixing screw is arranged on the shell cover, a voice coil assembly is arranged in the protection barrel, a silica gel sound nozzle is arranged at the end part of the protection barrel, a sound outlet hole is formed in the silica gel sound nozzle, a passive vibrating diaphragm is arranged in the inner cavity on the earphone shell, and a limiting assembly convenient to adjust is arranged on the outer side of the passive vibrating diaphragm on the earphone shell; according to the utility model, the passive vibrating diaphragm is limited up and down and left and right by the abutting block and the limiting block in the limiting component, so that the phenomenon that the earphone speaker structure which is used for a long time is fallen off due to heat generated after the inside of the earphone shell is electrified is prevented, and the use of the earphone with noise reduction in the later stage is facilitated.

Description

Speaker structure of noise reduction earphone

Technical Field

The utility model relates to the technical field of headphones, in particular to a loudspeaker structure of a noise reduction headphone.

Background

The common earphone speaker structure includes support, U iron, magnet, washer, voice coil, sound membrane etc. U iron is fixed with the support, and magnet, washer are placed in U iron, and the voice coil is placed in the magnetic gap of U iron and washer, and the voice coil atress in the magnetic field after the circular telegram of voice coil drives sound membrane vibration to produce sound.

But the earphone speaker structure of present generally carries out fixed connection through the viscose, produces heat after the inside circular telegram of earphone casing, and the phenomenon that drops easily appears in earphone speaker structure of long-term use, and leads to the contact failure to be unfavorable for the use of earphone of making an uproar falls in later stage.

Disclosure of Invention

The present utility model is directed to a speaker structure of a noise reduction earphone, so as to solve the problems set forth in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a speaker structure of earphone of making an uproar falls, includes the earphone casing, the tip of earphone casing is provided with the inner chamber, and the tip of earphone casing is provided with the casing lid, and the top of casing lid is provided with the protection section of thick bamboo, and the inside of protection section of thick bamboo is provided with voice coil assembly, and the tip of protection section of thick bamboo is provided with the silica gel sound mouth, has seted up the play sound hole on the silica gel sound mouth, is located the intracavity on the earphone casing and is provided with passive vibrating diaphragm, is provided with the spacing subassembly of being convenient for adjust in the outside that is located passive vibrating diaphragm on the earphone casing.

Preferably, an annular groove is formed in the edge of the end portion of the earphone shell, the inner side of the shell cover is matched with the annular groove, a fixing screw is arranged on the shell cover, and the fixing screw penetrates through the shell cover and is connected with the earphone shell through internal threads and external threads.

Preferably, the limiting component comprises a supporting cylinder, the two supporting cylinders are respectively positioned at two sides of the passive vibrating diaphragm and fixed on the earphone shell, and the top of the supporting cylinder is in sliding connection with the inserting column.

Preferably, a connecting block is arranged on one side of the inserted column, a traction column is arranged at the bottom end of the end part of the connecting block, and an abutting block is arranged at the bottom end of the traction column.

Preferably, the surface of butt piece is the rubber layer structure, and with the top edge butt of passive vibrating diaphragm, the bottom of connecting block is provided with the stopper, butt between stopper and the outside of passive vibrating diaphragm.

Preferably, the holding groove has been seted up to one side of spliced pole, and the slip grafting has the removal fixture block on the holding groove, and the removal fixture block is "" type massive structure, and the inside of spliced pole is provided with the draw-in groove.

Preferably, a supporting spring is arranged between the movable clamping block and the accommodating groove, a plurality of clamping grooves are formed, the plurality of clamping grooves are circumferentially distributed around the inserted column, and the end parts of the movable clamping block are mutually matched with the clamping grooves.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the limiting component is arranged on the outer side of the passive vibrating diaphragm on the earphone shell, and the abutting block and the limiting block in the limiting component form the upper, lower, left and right limiting on the passive vibrating diaphragm, so that the phenomenon that the earphone speaker structure which is used for a long time after the inside of the earphone shell is electrified is prevented from falling off, and the earphone is beneficial to the use of the noise reduction earphone in the later stage.

2. According to the utility model, the elastic clamping structure is formed between the supporting spring and the movable clamping block, so that the end part of the movable clamping block is clamped on the corresponding clamping groove, the limiting fixation of the whole limiting assembly is realized, the limiting relative stability of the limiting assembly to the passive vibrating diaphragm is ensured, and the practicability of the device is improved.

Drawings

Fig. 1 is a schematic structural view of an earphone housing according to the present utility model.

Fig. 2 is a schematic structural view between the silica gel mouthpiece and the housing cover of the present utility model.

Fig. 3 is a schematic structural diagram of a speaker structure according to the present utility model.

Fig. 4 is an enlarged schematic view of the structure of fig. 3 a according to the present utility model.

Fig. 5 is a cross-sectional view of a post of the present utility model.

FIG. 6 is an enlarged schematic view of the structure of FIG. 5B according to the present utility model

In the figure: a headphone housing 1; an annular groove 11; a housing cover 2; a protective cylinder 3; a voice coil assembly 31; a set screw 32; a silica gel mouthpiece 4; a sound outlet 41; a passive diaphragm 5; a support cylinder 6; a post 61; a connection block 62; a pulling post 63; an abutment block 64; a stopper 65; moving the latch 66; a card slot 67; supporting the spring 68.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 6, the present utility model provides a technical solution: the utility model provides a speaker structure of earphone of making an uproar falls, includes earphone casing 1, and the inner chamber has been seted up to earphone casing 1's tip, and earphone casing 1's tip is installed casing lid 2, and annular groove 11 has been seted up to earphone casing 1's tip edge, matches each other between casing lid 2's inboard and the annular groove 11 for closely combine between earphone casing 1 and the casing lid 2, be favorable to the effect of making an uproar.

The shell cover 2 is provided with a fixing screw 32, the fixing screw 32 penetrates through the shell cover 2 and is connected with the earphone shell 1 through internal and external threads, the top of the shell cover 2 is fixedly connected with a protection barrel 3, the inside of the protection barrel 3 is fixedly provided with a voice coil assembly 31, the voice coil assembly 31 comprises a magnet, a washer, a voice coil and other assemblies, and the voice coil assembly 31 is stressed in a magnetic field after being electrified.

The tip of guard cylinder 3 bonds and has had silica gel sound mouth 4, the last sound hole 41 of having seted up of silica gel sound mouth 4, the setting of sound hole 41 is convenient for pass through sound hole 41 to the ear, be favorable to the concentration of sound, lie in the intracavity on the earphone casing 1 and bond and have passive vibrating diaphragm 5, the atress in the magnetic field after the voice coil assembly 31 circular telegram, drive the vibration of passive vibrating diaphragm 5, thereby produce sound, lie in the outside of passive vibrating diaphragm 5 on the earphone casing 1 and be provided with the spacing subassembly of being convenient for adjust, spacing subassembly includes support cylinder 6, two support cylinder 6 lie in the both sides of passive vibrating diaphragm 5 respectively and fix on earphone casing 1.

The top of the support cylinder 6 is slidably inserted with an inserting column 61, one side of the inserting column 61 is fixed with a connecting block 62, the bottom end of the end part of the connecting block 62 is fixed with a pulling column 63, the bottom end of the pulling column 63 is fixed with an abutting block 64, the surface of the abutting block 64 is of a rubber layer structure and abuts against the edge of the top end of the passive vibrating diaphragm 5, and the passive vibrating diaphragm 5 is limited up and down.

The bottom of connecting block 62 is fixed with stopper 65, and the butt is between the outside of stopper 65 and passive vibrating diaphragm 5, and the setting of stopper 65 forms and controls spacing effect to passive vibrating diaphragm 5, and the holding tank has been seted up to one side of spliced pole 61, and the slip grafting has movable fixture block 66 on the holding tank, and movable fixture block 66 is "" type massive structure, and draw-in groove 67 has been seted up to the inside of spliced pole 61, fixedly connected with supporting spring 68 between movable fixture block 66 and the holding tank.

The clamping grooves 67 are formed in a plurality, the clamping grooves 67 are circumferentially distributed around the inserting columns 61, the end portions of the movable clamping blocks 66 are matched with the clamping grooves 67, and an elastic clamping structure is formed between the supporting springs 68 and the movable clamping blocks 66, so that the end portions of the movable clamping blocks 66 are clamped on the corresponding clamping grooves 67, and limiting fixation of the whole limiting assembly is achieved.

During actual use, the passive diaphragm 5 is adhered to the inner cavity of the earphone shell 1, the end part of the movable clamping block 66 is contained in the containing groove of the inserting column 61 by pressing, the inserting column 61 is rotated, the abutting block 64 abuts against the edge of the top end of the passive diaphragm 5 to form a limiting effect on the passive diaphragm 5 up and down, the limiting block 65 abuts against the outer side of the passive diaphragm 5 to form a limiting effect on the left and right sides of the passive diaphragm 5, the movable clamping block 66 is loosened, the end part of the movable clamping block 66 is clamped on the corresponding clamping groove 67 under the elastic action of the supporting spring 68, limiting fixation of the whole limiting assembly is achieved, the phenomenon that the earphone speaker structure used for a long time is fallen after the earphone shell is electrified is prevented, and therefore the use of the earphone for noise reduction in later period is facilitated.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a speaker structure of earphone of making an uproar falls, includes earphone casing (1), its characterized in that: the earphone is characterized in that an inner cavity is formed in the end portion of the earphone shell (1), a shell cover (2) is arranged at the end portion of the earphone shell (1), a protection barrel (3) is arranged at the top of the shell cover (2), a voice coil assembly (31) is arranged in the protection barrel (3), a silica gel sound nozzle (4) is arranged at the end portion of the protection barrel (3), a sound outlet hole (41) is formed in the silica gel sound nozzle (4), a passive vibrating diaphragm (5) is arranged in the inner cavity of the earphone shell (1), and a limiting assembly convenient to adjust is arranged on the outer side of the passive vibrating diaphragm (5) on the earphone shell (1).

2. The speaker structure of a noise reducing earphone according to claim 1, wherein: the earphone is characterized in that an annular groove (11) is formed in the edge of the end part of the earphone shell (1), the inner side of the shell cover (2) is matched with the annular groove (11), a fixing screw (32) is arranged on the shell cover (2), and the fixing screw (32) penetrates through the shell cover (2) and is connected with the earphone shell (1) through internal threads and external threads.

3. The speaker structure of a noise reducing earphone according to claim 1, wherein: the limiting component comprises supporting cylinders (6), the two supporting cylinders (6) are respectively positioned at two sides of the passive vibrating diaphragm (5) and fixed on the earphone shell (1), and the tops of the supporting cylinders (6) are slidably inserted with inserting columns (61).

4. A speaker structure of a noise reducing earphone according to claim 3, wherein: one side of the inserted column (61) is provided with a connecting block (62), the bottom end of the end part of the connecting block (62) is provided with a traction column (63), and the bottom end of the traction column (63) is provided with an abutting block (64).

5. The speaker structure of a noise reducing earphone as defined in claim 4, wherein: the surface of butt piece (64) is rubber layer structure, and with the top edge butt of passive vibrating diaphragm (5), the bottom of connecting block (62) is provided with stopper (65), butt between the outside of stopper (65) and passive vibrating diaphragm (5).

6. A speaker structure of a noise reducing earphone according to claim 3, wherein: one side of the inserted column (61) is provided with a containing groove, a movable clamping block (66) is inserted into the containing groove in a sliding mode, the movable clamping block (66) is of a -type block structure, and a clamping groove (67) is formed in the inserted column (61).

7. The speaker structure of a noise reducing earphone of claim 6, wherein: support springs (68) are arranged between the movable clamping blocks (66) and the accommodating grooves, a plurality of clamping grooves (67) are formed, the plurality of clamping grooves (67) are circumferentially distributed around the inserting columns (61), and the end parts of the movable clamping blocks (66) are matched with the clamping grooves (67).