CN205596327U

CN205596327U - Mini loudspeaker

Info

Publication number: CN205596327U
Application number: CN201620180758.2U
Authority: CN
Inventors: 刘玉波; 张成飞
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2016-03-09
Filing date: 2016-03-09
Publication date: 2016-09-21
Anticipated expiration: 2026-03-09

Abstract

The utility model discloses a mini loudspeaker has accommodated vibration system and magnetic circuit including combining protecgulum and shell in the space that protecgulum and shell enclose, be equipped with interior concave part on the lateral wall of protecgulum and the corresponding contact of shell respectively, and interior concave part constitutes the glue groove that can hold the colloid in mini loudspeaker's side together. Because of protecgulum and the shell department of combining together are equipped with the glue groove, thereby make the utility model discloses an adopt glue sealed between protecgulum and the shell, make the device have higer grade's waterproof ability, simultaneously establish the lateral wall in protecgulum and shell combination department because of the glue groove again, make the protecgulum have the width that the cotton is steeped to enough bondings, also have the area of enough offering the phonate hole to make the increase of device vibration space, the performance of device can well be exert, still guaranteed the water -proof effects of complete machine. Consequently the utility model discloses a mini loudspeaker, it has improved waterproof grade on the basis that does not influence the device performance performance.

Description

A kind of Microspeaker

Technical field

This utility model relates to speaker waterproof technique field, particularly relates to a kind of Microspeaker.

Background technology

Microspeaker is the important acoustic element of portable electric appts, the conversion being used between the signal of telecommunication and acoustical signal, is a kind of energy conversion device.Along with the development of electronic technology, the various functions of portable electric appts is required more and more higher by people, and wherein the requirement to Microspeaker is waterproof just proposes the biggest requirement.

Microspeaker in early days waterproof, having a kind of waterproof construction is increase barricade on shell, simultaneously at the end of protecgulum design gum box.But above-mentioned waterproof construction exists serious drawback, mainly show themselves in that after increasing barricade on shell, make the oscillation space limit in Microspeaker little, be unfavorable for the performance of device；Simultaneously after the end of protecgulum devises gum box, in order to ensure the width of protecgulum foam bonding with complete machine, certainly will offer the less acoustic aperture that goes out, the thickness of protecgulum certainly will take certain element height, cause linear array space time to utilize height reduction, be also unfavorable for the performance of device performance.

Utility model content

This utility model provides a kind of Microspeaker, and the waterproof construction of this speaker, on the basis of not affecting device performance performance, improves classification of waterproof.

For solving above-mentioned technical problem, the technical solution of the utility model is:

A kind of Microspeaker, including containing vibrational system and magnetic circuit system in the space that the protecgulum combined and shell, described protecgulum and described shell surround, wherein, the described protecgulum sidewall that contact corresponding with described shell is respectively equipped with inner fovea part；Described inner fovea part constitutes the gum box that can accommodate colloid in the side of described Microspeaker.

Optimal way is, described protecgulum sidewall is provided with the first inner fovea part near the position of described side wall of outer shell；On described side wall of outer shell, the position that contact corresponding with described first inner fovea part is provided with the second inner fovea part；Described first inner fovea part and described second inner fovea part complement each other to form described gum box.

Optimal way is, described first inner fovea part being positioned on described protecgulum is symmetrical arranged with described second inner fovea part being positioned on described shell.

Optimal way is, described first inner fovea part and described second inner fovea part are the sunk structure that material is formed.

Optimal way is, described gum box is dovetail groove.

Optimal way is, four corners of described shell are provided with hot melt pillar, and described protecgulum is correspondingly provided with the hot melt hole suitable with described hot melt pillar；Described protecgulum is fixed with described shell hot melt.

Optimal way is, the corner of described shell is provided with hot melt pillar, and on described protecgulum, the position of corresponding described hot melt pillar is provided with avoiding structure.

Optimal way is, described magnetic circuit system includes internal magnet and limit Magnet, and on described shell, the position of corresponding described limit Magnet is provided with material, and described limit Magnet is exposed to outside, and the outer surface of described limit Magnet flushes with the outer surface of described shell.

After using technique scheme, the beneficial effects of the utility model are: owing to Microspeaker of the present utility model includes the protecgulum and the shell that combine, vibrational system and magnetic circuit system is contained in the space that protecgulum and shell surround, it is respectively equipped with inner fovea part on the protecgulum sidewall contacted corresponding with shell, collectively forms the gum box that can accommodate colloid.Because the place of combining of protecgulum and shell is provided with gum box, so that using glue sealing between protecgulum of the present utility model and shell, device is made to have the waterproof ability of higher level；Simultaneously it is located at protecgulum because of gum box the most again and shell combines the sidewall at place, protecgulum is made to have the width of the most bonding foam, it may have enough to set out the area of acoustic aperture, so that device oscillation space increases, the performance allowing device can well play, it is ensured that the waterproof effect of complete machine.Microspeaker the most of the present utility model, it, on the basis of not affecting device performance performance, improves classification of waterproof.

The first inner fovea part owing to being positioned on protecgulum is symmetrical arranged with the second inner fovea part being positioned on shell；When this structure uses glue sealing, the junction glue of protecgulum and shell is evenly distributed, and makes sealed waterproof effect good.

In sum, Microspeaker of the present utility model, solve in prior art because waterproof construction exists drawback, cause being unfavorable for that device performance plays, the technical problem that complete machine waterproof effect reduces.Microspeaker of the present utility model, makes the classification of waterproof of device reach more than IPX7, also increases actual vibration height space, it is ensured that enough protecgulums bonding complete machine foam width, makes complete machine waterproof effect good.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model Microspeaker；

Fig. 2 a is close-up schematic view at C in Fig. 1；

Fig. 2 b is close-up schematic view at D in Fig. 1；

Fig. 3 is the generalized section in Fig. 1 at A A；

Fig. 3 a is the close-up schematic view in Fig. 3 at B；

Fig. 4 is the detonation configuration schematic diagram of this utility model Microspeaker；

In figure: 1 protecgulum, 2 Dome, 3 vibrating diaphragms, 4 voice coil loudspeaker voice coils, 5 shells, 6 shell fragments, washer in 70,71 outer washers, 80 internal magnets, 81 external magnets, 9 frame, 10 hot melt pillars, 11 gum boxs, 12 avoiding structures, 13, hot melt hole.

Detailed description of the invention

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.

As shown in Fig. 1, Fig. 3, Fig. 3 a and Fig. 4, a kind of Microspeaker includes protecgulum 1 and the shell 5 combined, and protecgulum 1 offers out acoustic aperture.Vibrational system and magnetic circuit system is contained in the space that protecgulum 1 and shell 5 surround.Being respectively equipped with inner fovea part on protecgulum 1 sidewall contacted corresponding with shell 5, inner fovea part collectively forms the gum box 11 that can accommodate colloid.

After gum box 11 endogenous cause of ill on the side fills glue sealing, make the device in this utility model by excellent sealing, make the classification of waterproof of device arrive more than IPX7.And gum box 11 is located at protecgulum 1 and shell 5 combine place sidewall after, make that there is on protecgulum 1 enough width and set out acoustic aperture, it may have enough width foam bonding with complete machine, also ensure that the waterproof of complete machine.

As shown in Fig. 3 and Fig. 3 a, in this embodiment, protecgulum 1 sidewall is provided with the first inner fovea part near the position of shell 5 sidewall, simultaneously, on shell 5 sidewall, the position that contact corresponding with the first inner fovea part is provided with the second inner fovea part, two inner fovea parts cooperate in the side of Microspeaker and collectively form gum box 11, and the first inner fovea part being positioned on protecgulum 1 is symmetrical set with the second inner fovea part being positioned on shell 5, and gum box 11 is dovetail groove.Gum box 11 is between protecgulum 1 and shell 5 during glue sealing, and glue seals the most respectively, makes classification of waterproof higher.Certainly, in specific implementation process, gum box 11 is not limited to above-mentioned trapezoid groove structure, can also is that arcuate groove or square groove or other structure, as long as arrange, on protecgulum 1 sidewall contacted corresponding with shell 5, the sunk structure cooperated so that it is cooperatively form the groove that can put colloid.

In the technical program, it is readily understood that, the first inner fovea part on protecgulum 1 is, with the second inner fovea part on shell 5, the structure that material is formed.

Improvement based on said structure, when protecgulum 1 is fixed with shell 5 hot melt, specifically may be configured as, for fixing the hot melt pillar 10 of protecgulum 1, the mode that the following two kinds is different:

Embodiment one:

As shown in Fig. 1 and Fig. 2 a, the Microspeaker of the present embodiment, four corners of its shell 5 are provided with hot melt pillar 10, on protecgulum 1, the position of corresponding hot melt pillar 10 is respectively equipped with corresponding avoiding structure 12, specifically, on protecgulum 1, the position of corresponding hot melt pillar 10 realizes dodging hot melt pillar 10 by arranging concave inward structure.

Embodiment two:

As shown in Fig. 2 b and Fig. 4, the Microspeaker of the present embodiment, four corners of its shell 5 are still provided with the hot melt pillar 10 for positioning protecgulum 1, unlike embodiment one, in present embodiment, the position of the corresponding hot melt pillar 10 of protecgulum 1 is respectively equipped with suitable hot melt hole 13, and when hot melt is fixed, hot melt pillar 10 corresponding can insert in hot melt hole 13 and be heat-fused on the end face of protecgulum 1.

As shown in figs. 1 and 4, the vibrational system of Microspeaker of the present utility model includes the vibrating diaphragm 3 that edge part is fixed between protecgulum 1 and shell 5, and vibrating diaphragm 3 is combined with DOME2 near a middle side part of protecgulum 1, and the opposite side of vibrating diaphragm 3 is combined with voice coil loudspeaker voice coil 4.

Magnetic circuit system includes the frame 9 combined with shell 5, and the central part inside frame 9 is fixed with internal magnet 80 and interior washer 70 successively, and the edge part inside frame 9 is fixed with external magnet 81 and outer washer 71 successively.Internal magnet 80 and interior washer 70 constitute the internal magnetic circuit of magnetic circuit system, external magnet 81 and outer washer 71 and constitute the external magnetic circuit of magnetic circuit system, are provided with magnetic gap between internal magnetic circuit and external magnetic circuit, and the end of voice coil loudspeaker voice coil 4 is positioned at magnetic gap.In a specific embodiment, the sidewall of shell 5 can arrange material, after assembling with magnetic circuit system, limit magnetic circuit can be exposed to outside, but its outer surface had better not be beyond the outer surface of shell 5, can be flush, said structure is the design that a kind of limit magnetic exposes, certainly, when being embodied as, the concrete structure of magnetic circuit and form have no effect on the enforcement of the technical program.

Being additionally provided with shell fragment 6 on shell 5, the lead-in wire of one end and voice coil loudspeaker voice coil 4 that shell fragment 6 is positioned at shell 5 electrically connects, and one end that shell fragment 6 is positioned at outside shell 5 electrically connects with external circuit.

Microspeaker of the present utility model, compared to the Microspeaker being not provided with waterproof construction in prior art, there is higher ranked water-proof function, the high request of the proposition waterproof to Microspeaker can be met, compared to waterproof construction in early days, increase device actual vibration height space, it is ensured that the performance of device performance, it is ensured that the waterproof effect of complete machine.

The above preferred embodiment of the present utility model; not in order to limit the present invention; all made within the spirit and principles in the present invention any amendment, etc. the improvement etc. of same Microspeaker structure, within should be included in protection domain of the present utility model.

Claims

1. a Microspeaker, including the protecgulum combined and shell, described protecgulum and described shell Vibrational system and magnetic circuit system is contained, it is characterised in that described protecgulum and described shell in the space surrounded It is respectively equipped with inner fovea part on the sidewall of corresponding contact；Described inner fovea part is at the side structure of described Microspeaker One-tenth can accommodate the gum box of colloid.

Microspeaker the most according to claim 1, it is characterised in that described protecgulum sidewall is near institute The position stating side wall of outer shell is provided with the first inner fovea part；Corresponding with described first inner fovea part on described side wall of outer shell connect The position touched is provided with the second inner fovea part；Described first inner fovea part complements each other to form with described second inner fovea part Described gum box.

Microspeaker the most according to claim 2, it is characterised in that the institute being positioned on described protecgulum Described second inner fovea part stating the first inner fovea part and be positioned on described shell is symmetrical arranged.

Microspeaker the most according to claim 3, it is characterised in that described first inner fovea part and institute State the second inner fovea part and be the sunk structure that material is formed.

Microspeaker the most according to claim 3, it is characterised in that described gum box is dovetail groove.

6. according to the Microspeaker described in claim 1 to 5 any claim, it is characterised in that institute Four corners stating shell are provided with hot melt pillar, described protecgulum are correspondingly provided with suitable with described hot melt pillar Hot melt hole；Described protecgulum is fixed with described shell hot melt.

7. according to the Microspeaker described in claim 1 to 5 any claim, it is characterised in that institute The corner stating shell is provided with hot melt pillar, and on described protecgulum, the position of corresponding described hot melt pillar is provided with and keeps away Allow structure.

Microspeaker the most according to claim 1, it is characterised in that in described magnetic circuit system includes Magnet and limit Magnet, on described shell, the position of corresponding described limit Magnet is provided with material, and described limit Magnet is exposed In outside, and the outer surface of described limit Magnet flushes with the outer surface of described shell.