CN218850965U - Miniature loudspeaker - Google Patents
Miniature loudspeaker Download PDFInfo
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- CN218850965U CN218850965U CN202222716952.6U CN202222716952U CN218850965U CN 218850965 U CN218850965 U CN 218850965U CN 202222716952 U CN202222716952 U CN 202222716952U CN 218850965 U CN218850965 U CN 218850965U
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- groove
- glue
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- containing groove
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Abstract
The utility model discloses a micro loudspeaker, which comprises a frame, a bonding pad and a voice coil, wherein the frame is provided with a dispensing area and an avoidance groove which are arranged close to each other; the welding plate is arranged on the basin frame; the voice coil is provided with a lead welded with the bonding pad, the lead comprises a first part, a second part and a third part which are sequentially connected, the first part is bonded in the dispensing area, and the third part is positioned in an upper hollow area of the avoiding groove; the basin frame is further provided with a glue containing groove, the glue containing groove is located between the glue dispensing area and the avoiding groove, and the second portion is located in an upper hollow area of the glue containing groove. The micro-speaker effectively controls the fixed length of the lead on the basin frame, avoids the lead fatigue and disconnection caused by the fact that the suspended part of the lead is shortened due to overlong dispensing length, is favorable for improving the reliability and consistency of products, and prolongs the service life of the products.
Description
Technical Field
The utility model relates to a speaker technical field especially relates to a miniature speaker.
Background
The structure of the micro-speaker is generally composed of accessories such as a frame, a voice coil, a lead wire, a washer, a diaphragm, a front cover and the like. Wherein, the tip of lead wire and the bonding pad welding on the basin frame, for preventing the desoldering, need to glue on the basin frame, fix the lead wire on the basin frame, however, in-process of point gluing, because glue has mobility, so the point of gluing equipment is glued orbit length more difficult control to lead wire length is limited, if glue fixed portion is too long, moment when will leading to the lead wire vibration diminishes, stress concentration is at the glue tip, and the lead wire vibrates for a long time and forms fatigue broken string easily.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a micro speaker having a longer life is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: a micro-speaker comprises
The basin frame is provided with a dispensing area and an avoidance groove which are arranged close to each other;
the bonding pad is arranged on the basin frame;
the voice coil is provided with a lead welded with the bonding pad, the lead comprises a first part, a second part and a third part which are sequentially connected, the first part is bonded in the dispensing area, and the third part is positioned in an upper hollow area of the avoiding groove;
the basin frame is further provided with a glue containing groove, the glue containing groove is located between the glue dispensing area and the avoiding groove, and the second portion is located in an upper hollow area of the glue containing groove.
Furthermore, a first transition surface is arranged between the glue dispensing area and the glue containing groove.
Further, the first transition surface is an inclined surface, an arc surface or a stepped surface.
Furthermore, the dispensing area is connected with the first transition surface through a fillet.
Further, the glue containing groove is communicated with the avoiding groove.
Furthermore, the depth of the glue accommodating groove is smaller than that of the avoiding groove.
Furthermore, a second transition surface is arranged between the glue containing groove and the avoiding groove.
Further, the second transition surface is an inclined surface, an arc surface or a stepped surface.
Furthermore, the bottom of the glue containing groove is connected with the second transition surface through a fillet.
Furthermore, the welding surface of the welding pad is coplanar with the dispensing area.
The beneficial effects of the utility model reside in that: the micro loudspeaker is provided with the glue containing groove at the glue dispensing stop position of the glue dispensing area of the frame, so that the fixed length of the lead on the frame is effectively controlled, the fatigue and disconnection of the lead caused by the shortening of the suspended part of the lead due to overlong glue dispensing length are avoided, the reliability and consistency of the product are improved, and the service life of the product is prolonged; meanwhile, when the dispensing operation of the loudspeakers of different models is carried out, the length of the dispensing track of the dispensing equipment is not required to be debugged, and the production and the manufacture of the miniature loudspeakers are facilitated.
Drawings
Fig. 1 is a schematic structural diagram of a part of a micro-speaker according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of the structure shown in fig. 1.
Description of the reference symbols:
1. a basin stand; 11. a glue dispensing area; 12. an avoidance groove; 13. a glue containing groove; 14. a first transition surface; 15. a second transition surface;
2. a pad;
3. a voice coil; 31. and (6) leading wires.
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.
Referring to fig. 1 and 2, the voice coil loudspeaker comprises a basin frame 1, a pad 2 and a voice coil 3, wherein the basin frame 1 is provided with a dispensing area 11 and an avoiding groove 12 which are arranged close to each other; the welding plate 2 is arranged on the basin frame 1; the voice coil 3 is provided with a lead 31 welded with the pad 2, the lead 31 comprises a first part, a second part and a third part which are sequentially connected, the first part is adhered in the dispensing area 11, and the third part is positioned in an upper hollow area of the avoiding groove 12; still be equipped with on the basin frame 1 and hold gluey groove 13, hold gluey groove 13 and be located the point gum district 11 with dodge between the groove 12, the second part is located hold gluey groove 13's overhead region.
The utility model discloses a theory of operation brief as follows: glue containing grooves 13 are additionally formed in glue dispensing stop positions of the glue dispensing areas 11, when glue dispensing equipment performs glue dispensing operation, glue flowing out of the glue dispensing areas 11 flows into the glue containing grooves 13 and avoids suspended leads 31, and therefore the leads 31 are prevented from being too large in fixed length.
From the above description, the beneficial effects of the present invention are: the micro loudspeaker is provided with the glue containing groove at the glue dispensing stop position of the glue dispensing area of the frame, so that the fixed length of the lead on the frame is effectively controlled, the fatigue and disconnection of the lead caused by the shortening of the suspended part of the lead due to overlong glue dispensing length are avoided, the reliability and consistency of the product are improved, and the service life of the product is prolonged; meanwhile, when glue dispensing of loudspeakers of different models is carried out, the length of a glue dispensing track of the glue dispensing equipment does not need to be debugged, and the production and the manufacture of the micro-loudspeakers are facilitated.
Further, a first transition surface 14 is arranged between the dispensing area 11 and the glue containing groove 13.
Further, the first transition surface 14 is an inclined surface, an arc surface or a stepped surface.
As can be seen from the above description, the first transition surface facilitates the excessive glue in the glue dispensing area to flow into the glue accommodating groove.
Further, the dispensing area 11 and the first transition surface 14 are connected by a fillet.
It can be known from the above description that the rounded corner transition is arranged to replace a sharp corner, so that the stress applied to the corner when the lead vibrates can be prevented from being too concentrated, and the probability of wire breakage can be reduced.
Further, the glue containing groove 13 is communicated with the avoiding groove 12.
From the above description, when the dispensing amount is too large and the capacity of the glue accommodating slot is insufficient, the extra glue will further flow into the avoiding slot.
Further, the depth of the glue containing groove 13 is smaller than the depth of the avoiding groove 12.
As can be seen from the above description, the depth of the glue containing groove is smaller than that of the avoiding groove, which is beneficial to ensuring the overall structural strength of the basin stand.
Further, a second transition surface 15 is arranged between the glue containing groove 13 and the avoiding groove 12.
Further, the second transition surface 15 is an inclined surface, an arc surface or a stepped surface.
As can be seen from the above description, the second transition surface facilitates the flowing of the excessive glue in the glue containing groove into the avoiding groove.
Further, the bottom of the glue containing groove 13 is connected with the second transition surface 15 through a fillet.
As can be seen from the description, the fillet transition is arranged to replace a sharp corner, so that the stress applied to the corner when the lead vibrates can be prevented from being excessively concentrated, and the probability of wire breakage is reduced.
Further, the bonding surface of the bonding pad 2 is coplanar with the dispensing area 11.
As can be seen from the above description, the coplanarity of the bonding surface of the bonding pad and the dispensing area can make the lead gluing smoother, which is beneficial to the fixation of the lead.
Example one
Referring to fig. 1 and fig. 2, a first embodiment of the present invention is: a micro loudspeaker is applied to electronic equipment such as mobile phones, sound boxes, intelligent watches, tablet computers and notebook computers.
The micro loudspeaker comprises a frame 1, a bonding pad 2 and a voice coil 3, wherein the frame 1 is provided with a dispensing area 11 and an avoidance groove 12 which are arranged close to each other; the welding plate 2 is arranged on the basin frame 1; the voice coil 3 is provided with a lead 31 welded with the pad 2, the lead 31 comprises a first part, a second part and a third part which are sequentially connected, the first part is adhered in the dispensing area 11, and the third part is positioned in an upper hollow area of the avoiding groove 12; the magnetic circuit component comprises a yoke and magnetic steel, the yoke is connected with the basin frame 1, the magnetic steel is arranged on the yoke, the magnetic steel comprises central magnetic steel and a plurality of side magnetic steels, a central washer is arranged at the top of the central magnetic steel, a side washer is arranged at the top of each side magnetic steel, the central magnetic steel is arranged between at least two opposite side magnetic steels, a magnetic circuit gap is formed between the central magnetic steel and each side magnetic steel, and at least one part of the voice coil 3 is positioned in the magnetic circuit gap; the edge of the vibrating diaphragm is connected with the basin frame 1, the voice coil 3 is fixed on the vibrating diaphragm, the voice coil 3 is suspended in a gap between the magnet and the side wall of the basin frame 1, and the center of the vibrating diaphragm is provided with a ball top; still be equipped with on basin frame 1 and hold gluey groove 13, hold gluey groove 13 and be located the point is glued district 11 with dodge between the groove 12, the second part is located hold gluey groove 13's overhead region, in this embodiment, basin frame 1 is rectangular annular structure, pad 2, lead wire 31, point are glued district 11, dodge groove 12 and hold gluey groove 13 five quantity and be two respectively, and the symmetry sets up respectively 1 both sides of basin frame is short.
In this embodiment, basin frame 1 still includes the supporting part, the supporting part is followed main part top surface edge sets up, the supporting part is used for fixing the vibrating diaphragm, the basin frame edge is provided with the exhaust hole, be provided with the fuse on the supporting part, the basin frame the supporting part with fuse is integrated into one piece's structure, the fuse is used for the hot melt to connect the protecgulum, the protecgulum is used for protecting the vibrating diaphragm.
Referring to fig. 1 and fig. 2, a first transition surface 14 is disposed between the dispensing area 11 and the glue containing groove 13, optionally, the first transition surface 14 is an inclined surface, an arc surface, or a stepped surface, in this embodiment, the first transition surface 14 is an inclined surface, and the dispensing area 11 is connected to the first transition surface 14 through a fillet.
Referring to fig. 2, in this embodiment, the glue containing groove 13 is communicated with the avoiding groove 12, the depth of the glue containing groove 13 is smaller than that of the avoiding groove 12, and a second transition surface 15 is disposed between the glue containing groove 13 and the avoiding groove 12.
Optionally, the second transition surface 15 is an inclined surface, an arc surface or a stepped surface, in this embodiment, the second transition surface 15 is an inclined surface, and the bottom of the glue accommodating groove 13 is connected with the second transition surface 15 through a fillet.
Referring to fig. 1, a welding surface of the pad 2 is coplanar with the dispensing area 11, in this embodiment, a groove for accommodating the pad 2 is disposed on the basin stand 1, and the pad 2 is disposed in the groove.
To sum up, the utility model provides a micro loudspeaker increases the glue containing groove at the glue dispensing stop position of the dispensing area of the basin frame, effectively controls the fixed length of the lead on the basin frame, avoids the lead fatigue and disconnection caused by the shortening of the suspended part of the lead due to the overlong glue dispensing length, is favorable for improving the reliability and consistency of the product, and prolongs the service life of the product; meanwhile, when glue dispensing of loudspeakers of different models is carried out, the length of a glue dispensing track of glue dispensing equipment does not need to be debugged, so that the production and the manufacture of the micro loudspeaker are facilitated; the glue containing groove is communicated with the avoiding groove, so that the glue capacity is further increased; the transition between the areas is smooth, which is beneficial to the flowing of excessive glue to the glue containing groove, and simultaneously, the wire breakage probability of the lead wire can be reduced, and the service life of the product is further prolonged.
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 (10)
1. A micro-speaker, comprising:
the basin frame is provided with a dispensing area and an avoidance groove which are arranged close to each other;
the bonding pad is arranged on the basin frame;
the voice coil is provided with a lead welded with the bonding pad, the lead comprises a first part, a second part and a third part which are sequentially connected, the first part is bonded in the dispensing area, and the third part is positioned in an upper hollow area of the avoiding groove;
the basin frame is further provided with a glue containing groove, the glue containing groove is located between the glue dispensing area and the avoiding groove, and the second portion is located in an upper hollow area of the glue containing groove.
2. The micro-speaker of claim 1, wherein: a first transition surface is arranged between the glue dispensing area and the glue containing groove.
3. The micro-speaker of claim 2, wherein: the first transition surface is an inclined surface, an arc surface or a step surface.
4. The micro-speaker of claim 3, wherein: the dispensing area is connected with the first transition surface through a fillet.
5. The micro-speaker of claim 1, wherein: the glue containing groove is communicated with the avoiding groove.
6. The micro-speaker of claim 5, wherein: the depth of the glue containing groove is smaller than that of the avoiding groove.
7. The micro-speaker of claim 5, wherein: a second transition surface is arranged between the glue containing groove and the avoiding groove.
8. The micro-speaker of claim 7, wherein: the second transition surface is an inclined surface, an arc surface or a step surface.
9. The micro-speaker of claim 8, wherein: the bottom of the glue containing groove is connected with the second transition surface through a fillet.
10. The micro-speaker of claim 1, wherein: and the welding surface of the welding pad is coplanar with the dispensing area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222716952.6U CN218850965U (en) | 2022-10-14 | 2022-10-14 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222716952.6U CN218850965U (en) | 2022-10-14 | 2022-10-14 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218850965U true CN218850965U (en) | 2023-04-11 |
Family
ID=87283520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222716952.6U Active CN218850965U (en) | 2022-10-14 | 2022-10-14 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218850965U (en) |
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2022
- 2022-10-14 CN CN202222716952.6U patent/CN218850965U/en active Active
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