CN211128169U

CN211128169U - Micro loudspeaker

Info

Publication number: CN211128169U
Application number: CN202020338729.0U
Authority: CN
Inventors: 林嘉平; 董庆宾; 朱威
Original assignee: Shenzhen Sunway Acoustics Technology Co Ltd
Current assignee: Shenzhen Sunway Acoustics Technology Co Ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-07-28
Anticipated expiration: 2030-03-17

Abstract

The utility model discloses a micro loudspeaker, including the sound production unit, the sound production unit includes main vibration subassembly, basin frame and yoke, main vibration subassembly and yoke set up respectively in on the basin frame, still include vice vibration subassembly, vice vibration subassembly set up in on the side that main vibration subassembly was kept away from to the yoke, be equipped with first through-hole on the yoke, first through-hole with vice vibration subassembly corresponds the setting. Set up vice vibration subassembly on sound generating unit, vice vibration subassembly receives the atmospheric pressure change of its both sides can vibrate from top to bottom, makes the atmospheric pressure change range between main vibration subassembly and the vice vibration subassembly reduce to the equivalent volume in sound chamber behind the speaker has been increased, the low frequency sensitivity of promotion speaker. The utility model discloses an incidence unit's bass reappears effectually, and can be general in the box of difference, can carry out a large amount of automated production, promotes production efficiency, saves the cost.

Description

Micro loudspeaker

Technical Field

The utility model relates to a speaker technical field especially relates to a miniature speaker.

Background

The acoustic system of the conventional structure includes a closed box body and a sound generating unit provided on the closed box body, and a chamber is formed between the closed box body and the sound generating unit. In order to achieve a satisfactory bass reproduction effect in an acoustic system, the following solutions are generally adopted: and a secondary vibration component is arranged on a box body of the acoustic system.

However, the arrangement of the secondary vibration component on the box body of the acoustic system can only improve the sensitivity of the frequency band near the resonance point, and cannot improve all low frequency bands, and meanwhile, different box bodies need different design schemes of the secondary vibration component, so that the design cannot be universal, and the method is contradictory to the large-scale automatic production and cost reduction at present.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: a micro speaker having a good bass reproduction effect and a low cost is provided.

In order to solve the technical problem, the utility model discloses a technical scheme be:

the utility model provides a micro loudspeaker, includes sound producing unit, sound producing unit includes main vibration subassembly, basin frame and yoke, main vibration subassembly and yoke set up respectively in on the basin frame, still include vice vibration subassembly, vice vibration subassembly set up in on the side of main vibration subassembly is kept away from to the yoke, be equipped with first through-hole on the yoke, first through-hole with vice vibration subassembly corresponds the setting.

Further, the secondary vibration component comprises a secondary membrane, and the secondary membrane is made of a flexible material.

Further, the shape of the secondary membrane is a fold line shape, a wave shape or a flat plate shape.

Further, the secondary film comprises at least one vibration layer, and the vibration layer is made of at least one of TPU, TPEE, L CP, PAR, PC, PA, PPA, PEEK, PEI, PEN, PES, PET, PI, PPS, PPSU and PSU.

Furthermore, the number of vibration layer is one deck, the material of vibration layer is PEEK, the thickness value of vibration layer is 0.02 mm.

Further, the auxiliary vibration component further comprises an auxiliary dome, and the auxiliary dome is arranged in the middle of the auxiliary membrane.

Furthermore, the auxiliary ball top is made of aluminum.

Furthermore, a first blank pressing and a second blank pressing are respectively arranged on one side face, far away from the main vibration assembly, of the yoke, the first blank pressing is located on the edge of the yoke, and the second blank pressing is located at the connecting position of the yoke and the auxiliary vibration assembly.

Further, still include the box, sound generating unit set up in on the box.

Further, the sound production unit further comprises a voice coil, a washer and a magnetic steel assembly, wherein the voice coil is arranged on the basin frame, the washer corresponds to the magnetic steel assembly, a second through hole is formed in the washer, a third through hole is formed in the magnetic steel assembly, and the second through hole correspond to the first through hole.

The beneficial effects of the utility model reside in that: set up vice vibration subassembly on sound generating unit, vice vibration subassembly receives the atmospheric pressure change of its both sides can vibrate from top to bottom, makes the atmospheric pressure change range between main vibration subassembly and the vice vibration subassembly reduce to the equivalent volume in sound chamber behind the speaker has been increased, the low frequency sensitivity of promotion speaker. The utility model discloses an incidence unit's bass reappears effectually, and can be general in the box of difference, can carry out a large amount of automated production, promotes production efficiency, saves the cost.

Drawings

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

fig. 2 is an exploded view of a micro-speaker according to a first embodiment of the present invention;

fig. 3 is a schematic overall structure diagram of a sound generating unit in a micro speaker according to a first embodiment of the present invention;

fig. 4 is an exploded view of a sound generating unit in a micro-speaker according to a first embodiment of the present invention;

FIG. 5 is a cross-sectional view taken at A-A of FIG. 3;

FIG. 6 is an enlarged schematic view of the structure at A in FIG. 5;

fig. 7 is an exploded view of a sub-diaphragm assembly of a micro-speaker according to a first embodiment of the present invention;

fig. 8 is a cross-sectional view of an auxiliary membrane in a micro-speaker according to a first embodiment of the present invention;

fig. 9 is another cross-sectional view of the sub-membrane of the micro-speaker according to the first embodiment of the present invention;

fig. 10 is another cross-sectional view of the sub-membrane of the micro-speaker according to the first embodiment of the present invention;

fig. 11 is another cross-sectional view of the sub-membrane of the micro-speaker according to the first embodiment of the present invention;

fig. 12 is another cross-sectional view of the sub-membrane in the micro-speaker according to the first embodiment of the present invention.

Description of reference numerals:

1. a sound emitting unit; 2. a box body; 21. an upper housing; 22. a lower housing; 3. sealing the adhesive layer;

11. a primary vibrating assembly; 12. a basin stand; 13. a secondary vibrating assembly; 131. a secondary membrane; 132. a secondary ball top; 14. a yoke; 141. a first through hole; 142. a first blank holder; 143. second edge pressing; 15. a voice coil; 16. washer; 161. a second through hole; 17. a magnetic steel component; 171. a third via.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

The utility model discloses the most crucial design lies in: set up vice vibration subassembly on the sound generating unit, can promote the low frequency sensitivity of speaker, and reduce cost.

Referring to fig. 1 to 12, a micro speaker includes a sound generating unit 1, where the sound generating unit 1 includes a main vibration component 11, a frame 12, a yoke 14, and a sub-vibration component 13, where the main vibration component 11 and the yoke 14 are respectively disposed on the frame 12, the sub-vibration component 13 is disposed on a side surface of the yoke 14 away from the main vibration component 11, a first through hole 141 is disposed on the yoke 14, and the first through hole 141 corresponds to the sub-vibration component 13.

From the above description, the beneficial effects of the present invention are: set up vice vibration subassembly on sound generating unit, vice vibration subassembly receives the atmospheric pressure change of its both sides can vibrate from top to bottom, makes the atmospheric pressure change range between main vibration subassembly and the vice vibration subassembly reduce to the equivalent volume in sound chamber behind the speaker has been increased, the low frequency sensitivity of promotion speaker. The utility model discloses an incidence unit's bass reappears effectually, and can be general in the box of difference, can carry out a large amount of automated production, promotes production efficiency, saves the cost.

Further, the secondary vibration component 13 includes a secondary membrane 131, and the material of the secondary membrane 131 is a flexible material.

As can be seen from the above description, the material of the secondary membrane is only a flexible deformable material.

Further, the shape of the secondary membrane 131 is a fold line shape, a wave shape or a flat plate shape.

As is apparent from the above description, the shape of the sub-film may be set as desired, and is not limited to the above-listed shapes.

Further, the secondary film 131 includes at least one vibration layer, and the material of the vibration layer is at least one of TPU, TPEE, L CP, PAR, PC, PA, PPA, PEEK, PEI, PEN, PES, PET, PI, PPS, PPSU, and PSU.

As can be seen from the above description, the secondary film may have a single-layer or multi-layer structure, and the material of the secondary film may be selected according to the needs.

Further, the secondary vibration member 13 further includes a secondary dome 132, and the secondary dome 132 is disposed in the middle of the secondary membrane 131.

As can be seen from the above description, the secondary dome can increase the rigidity of the secondary vibrating assembly.

Further, the material of the sub dome 132 is aluminum.

Further, a first pressing edge 142 and a second pressing edge 143 are respectively arranged on one side surface of the yoke 14 away from the main vibration assembly 11, the first pressing edge 142 is located at the edge of the yoke 14, and the second pressing edge 143 is located at the connection position of the yoke 14 and the auxiliary vibration assembly 13.

According to the description, the first pressing edge is arranged to facilitate sealant pouring between the first pressing edge and the box body during assembly, the second pressing edge is arranged to facilitate sealing of the joint of the yoke and the auxiliary vibration assembly through the sealant, and a certain positioning effect is achieved.

Further, still include box 2, sound generating unit 1 set up in on the box 2.

Further, sound generating unit 1 still includes voice coil 15, china department 16 and magnetic steel component 17, voice coil 15 set up in on the basin frame 12, china department 16 corresponds the setting with magnetic steel component 17, be equipped with second through-hole 161 on the china department 16, be equipped with third through-hole 171 on the magnetic steel component 17, just second through-hole 161 and second through-hole 161 all with first through-hole 141 corresponds the setting.

As can be seen from the above description, the washer and the magnetic steel component are correspondingly provided with the through holes, so that the washer and the magnetic steel component are conveniently communicated with the cavity of the box body.

Referring to fig. 1 to 12, a first embodiment of the present invention is:

a micro speaker, as shown in fig. 1 and fig. 2, comprises a sound generating unit 1 and a box body 2, wherein the sound generating unit 1 is arranged on the box body 2. The box 2 includes casing 21 and lower casing 22, be equipped with the cavity between casing 21 and the lower casing 22, still be equipped with between sound generating unit 1 and the box 2 sealant layer 3.

As shown in fig. 3 and 4, the sound generating unit 1 includes a main vibration component 11, a basin frame 12, an auxiliary vibration component 13, a yoke 14, a voice coil 15, a washer 16 and a magnetic steel component 17, the main vibration component 11, the yoke 14 and the voice coil 15 are respectively arranged on the basin frame 12, the auxiliary vibration component 13 is arranged on a side face of the yoke 14 far away from the main vibration component 11, a first through hole 141 is arranged on the yoke 14, and the first through hole 141 and the auxiliary vibration component 13 are correspondingly arranged. The washer 16 is arranged corresponding to the magnetic steel assembly 17, a second through hole 161 is arranged on the washer 16, a third through hole 171 is arranged on the magnetic steel assembly 17, and the second through hole 161 are arranged corresponding to the first through hole 141.

As shown in fig. 5 and 6, a first pressing edge 142 and a second pressing edge 143 are respectively disposed on a side of the yoke 14 away from the main vibration assembly 11, the first pressing edge 142 is located at an edge of the yoke 14, and the second pressing edge 143 is located at a connection position of the yoke 14 and the secondary vibration assembly 13. In this embodiment, the first pressing edge 142 and the second pressing edge 143 are both of a step structure.

As shown in fig. 7, the secondary vibration member 13 includes a secondary membrane 131, the secondary membrane 131 is made of a flexible material, the secondary membrane 131 includes at least one vibration layer, the vibration layer is made of at least one of TPU, TPEE, L CP, PAR, PC, PA, PPA, PEEK, PEI, PEN, PES, PET, PI, PPS, PPSU, and PSU, preferably, the vibration layer is made of PEEK, the vibration layer has a thickness of 0.02mm, the secondary vibration member 13 further includes a secondary dome 132, the secondary dome 132 is disposed in the middle of the secondary membrane 131, the secondary dome 132 may be made of aluminum or other rigid materials, and the dome may be disposed or removed as needed.

As shown in fig. 8 to 12, the shape of the secondary membrane 131 is a zigzag shape, a wave shape, or a flat plate shape, and may be provided with a concave or concave ring structure, or may be a combination of a wave shape and a flat plate shape, and is not limited to these exemplified shapes.

To sum up, the utility model provides a pair of miniature speaker, bass reappearance is effectual, can carry out big automated production in batches, low in production cost.

The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a micro loudspeaker, includes sound producing unit, sound producing unit includes main vibration subassembly, basin frame and yoke, main vibration subassembly and yoke set up respectively in on the basin frame, its characterized in that still includes vice vibration subassembly, vice vibration subassembly set up in on the side of main vibration subassembly is kept away from to the yoke, be equipped with first through-hole on the yoke, first through-hole with vice vibration subassembly corresponds the setting.

2. The micro-speaker as claimed in claim 1, wherein the secondary vibrating member comprises a secondary membrane, and the secondary membrane is made of a flexible material.

3. The micro-speaker of claim 2, wherein the shape of the sub-membrane is a zigzag shape, a wave shape or a flat plate shape.

4. The micro-speaker of claim 2, wherein the sub-membrane comprises at least one vibration layer made of at least one of TPU, TPEE, L CP, PAR, PC, PA, PPA, PEEK, PEI, PEN, PES, PET, PI, PPS, PPSU, and PSU.

5. The micro-speaker as claimed in claim 4, wherein the number of the vibration layers is one, the material of the vibration layers is PEEK, and the thickness of the vibration layers is 0.02 mm.

6. The micro-speaker of claim 2, wherein the secondary vibration assembly further comprises a secondary dome disposed in a middle portion of the secondary membrane.

7. The micro-speaker as claimed in claim 6, wherein the sub-dome is made of aluminum.

8. The micro-speaker as claimed in claim 1, wherein a first and a second pressing edge are respectively disposed on a side of the yoke away from the main vibration assembly, the first pressing edge is located at an edge of the yoke, and the second pressing edge is located at a connection of the yoke and the sub-vibration assembly.

9. The micro-speaker of claim 1, further comprising a cabinet, wherein the sound generating unit is disposed on the cabinet.

10. The micro-speaker according to claim 1, wherein the sound generating unit further comprises a voice coil, a washer and a magnetic steel assembly, the voice coil is arranged on the frame, the washer is arranged corresponding to the magnetic steel assembly, a second through hole is arranged on the washer, a third through hole is arranged on the magnetic steel assembly, and the second through hole are arranged corresponding to the first through hole.