CN219499517U - Bone conduction sounding unit - Google Patents
Bone conduction sounding unit Download PDFInfo
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- CN219499517U CN219499517U CN202320659625.3U CN202320659625U CN219499517U CN 219499517 U CN219499517 U CN 219499517U CN 202320659625 U CN202320659625 U CN 202320659625U CN 219499517 U CN219499517 U CN 219499517U
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- annular ring
- shaping
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- side wall
- circular piece
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Abstract
The utility model discloses a bone conduction sounding unit, which comprises a cylindrical outer protective shell, wherein an elastic sheet layer is arranged on the inner side wall of the bottom of the outer protective shell; the shell fragment layer includes middle part circular piece and limit portion annular ring, and the lateral wall of limit portion annular ring sets up on the inside wall of outer protective housing, and the middle part shaping of middle part circular piece has the conduction through-hole, and the shaping has a plurality of connecting legs on the lateral wall of middle part circular piece, and the shaping has corresponding interior connecting leg on the inside wall of limit portion annular ring as well, and the one end shaping of arc strip is on the interior connecting leg that corresponds, the other end shaping is on the connecting leg that corresponds, and all arc strip equipartitions are between middle part circular piece and limit portion annular ring. Its elastic layer comprises middle part circular piece and limit portion annular ring, connects through a plurality of arc strips between limit portion annular ring and the middle part circular piece, and arc strip length is long for the vibration amplitude of middle part circular piece is big, improves vibration effect, thereby improves sound effect.
Description
Technical field:
the utility model relates to the technical field of earphone structures, in particular to a bone conduction sounding unit.
The background technology is as follows:
the existing Bluetooth earphone comprises an air conduction earphone and a bone conduction earphone, wherein the bone conduction earphone is as one of the bone conduction earphone of Chinese patent application number 201822053729.1, and the vibrator of the bone conduction earphone is directly connected with the vibrating diaphragm, so that the conduction area is increased, the sound is increased, the low frequency is increased, and the efficiency of the whole audio system is improved.
The vibrator is a sound generating unit and generally comprises an outer shell, an upper shell is fixed on the upper part of the outer shell, a coil is fixed in the middle of the bottom surface of the upper shell, a concentric fixing column is sleeved in the coil, a magnet and a magnetic conduction sheet are sleeved on the upper part of the concentric fixing column, a spring piece 10a is fixed on the inner side wall of the bottom of the upper shell, as shown in fig. 1, the spring piece 10a is generally provided with a central through hole in the middle, a central piece 20a is sleeved in the central through hole, a plurality of long parts 30a are formed on the outer side wall of the central piece 20a, the end parts of the long parts are formed on the inner side wall of the central through hole, the concentric fixing column is pressed on the central piece 20a, vibration of the central piece 20a is driven to realize transmission through the vibration of the concentric fixing column, however, as the side wall of the central piece 20a and the central through hole are connected by a plurality of connecting parts 30a, and the length of the connecting parts 30a is short, so that the vibration amplitude of the central piece 20a is not large, the vibration transmission effect is not ideal, namely the sound effect is poor.
The utility model comprises the following steps:
the utility model aims to overcome the defects of the prior art and provides a bone conduction sounding unit, wherein an elastic sheet layer of the bone conduction sounding unit consists of a middle circular sheet and an edge annular ring, the edge annular ring is connected with the middle circular sheet through a plurality of arc-shaped strips, and the length of each arc-shaped strip is long, so that the vibration amplitude of the middle circular sheet is large, the vibration effect is improved, and the sound effect is improved.
The scheme for solving the technical problems is as follows:
the bone conduction sounding unit comprises a cylindrical outer protective shell, wherein an elastic sheet layer is arranged on the inner side wall of the bottom of the outer protective shell;
the shell fragment layer includes middle part circular piece and limit portion annular ring, and the lateral wall of limit portion annular ring sets up on the inside wall of outer protective housing, and the middle part shaping of middle part circular piece has the conduction through-hole, and the shaping has a plurality of connecting legs on the lateral wall of middle part circular piece, and the shaping has corresponding interior connecting leg on the inside wall of limit portion annular ring as well, and the one end shaping of arc strip is on the interior connecting leg that corresponds, the other end shaping is on the connecting leg that corresponds, and all arc strip equipartitions are between middle part circular piece and limit portion annular ring.
Three connecting pins are formed on the outer side wall of the middle circular sheet, three inner connecting pins are also formed on the inner side wall of the edge annular ring, the three connecting pins are uniformly distributed on the outer side wall of the middle circular sheet by taking the central axis of the middle circular sheet as the center, and the three inner connecting pins are uniformly distributed on the inner side wall of the edge annular ring by taking the central axis of the middle circular sheet as the center;
each connecting pin is positioned between two adjacent inner connecting pins, and the connecting pins are connected with the inner connecting pins which are far away through arc-shaped strips.
The edge annular ring is formed on the inner side wall of the bottom of the outer protective shell.
The outer protective shell and the elastic sheet layer are metal pieces.
The utility model has the outstanding effects that:
compared with the prior art, its shell fragment layer comprises middle part circular piece and limit portion annular ring, connects through a plurality of arc strips between limit portion annular ring and the middle part circular piece, and arc strip length is long for the vibration amplitude of middle part circular piece is big, improves vibration effect, thereby improves sound effect.
Description of the drawings:
FIG. 1 is a schematic view of a part of a conventional spring plate;
FIG. 2 is a partial schematic view of the present utility model mounted to a headset housing (with the headset housing cover removed);
FIG. 3 is a schematic view of a partial structure of a bone conduction sound unit;
fig. 4 is a schematic view showing a partial structure of a bone conduction sound unit mounted at a headset housing
FIG. 5 is a schematic view of a partial structure of an outer protective case of the present utility model;
fig. 6 is a partial top view of fig. 5.
The specific embodiment is as follows:
the present utility model will now be described in detail with reference to the drawings and specific preferred embodiments thereof so that the advantages and features of the utility model will be more readily understood by those skilled in the art, these embodiments being for illustrative purposes only and not intended to limit the scope of the utility model.
As shown in fig. 2 to 6, an embodiment of a bone conduction sounding unit includes a cylindrical outer protective shell 21, an upper protective cover 60 is clamped at the top of the outer protective shell 21, a PCB circuit control board 61 is fixed on the top surface of the upper protective cover 60, a coil 6 is fixed on the bottom surface of the upper protective cover 60, concentric fixing columns 23 are inserted in the coil 6, a radial extension is formed on the outer side wall of the lower part of the concentric fixing columns 23, a magnet 61 and two magnetic conducting sheets 62 are inserted on the upper part of the concentric fixing columns 23, the magnet 61 is clamped between the two magnetic conducting sheets 62, the magnetic conducting sheets 62 at the bottom are pressed against the top surface of the radial extension, the inner side walls of middle through holes of the magnet 61 and the two magnetic conducting sheets 62 are pressed against the outer side wall of the upper part of the concentric fixing columns 23, a spring sheet layer 22 is arranged on the inner side wall at the bottom of the outer protective shell 21, and the bottom surface of the radial extension is pressed against the top surface of a middle circular sheet 221 of the spring sheet layer 22;
the elastic sheet layer 22 comprises a middle circular sheet 221 and an edge annular ring 222, the outer side wall of the edge annular ring 222 is formed on the inner side wall of the outer protective shell 21, a conducting through hole 223 is formed in the middle of the middle circular sheet 221, a plurality of connecting pins 224 are formed on the outer side wall of the middle circular sheet 221, corresponding inner connecting pins 225 are also formed on the inner side wall of the edge annular ring 222, one end of each arc-shaped strip 226 is formed on the corresponding inner connecting pin 225, the other end of each arc-shaped strip 226 is formed on the corresponding connecting pin 224, and all the arc-shaped strips 226 are uniformly distributed between the middle circular sheet 221 and the edge annular ring 222. The bottom ends of the concentric fixing posts 23 protrude out of the bottom surface of the conductive through-hole 223, and the bottom outer sidewall of the concentric fixing posts 23 is pressed against the inner sidewall of the conductive through-hole 223.
Further, three connecting pins 224 are formed on the outer side wall of the middle circular plate 221, three inner connecting pins 225 are also formed on the inner side wall of the side annular ring 222, the three connecting pins 224 are uniformly distributed on the outer side wall of the middle circular plate 221 with the central axis of the middle circular plate 221 as the center, and the three inner connecting pins 225 are uniformly distributed on the inner side wall of the side annular ring 222 with the central axis of the middle circular plate 221 as the center;
each connecting pin 224 is located between two adjacent inner connecting pins 225, and is connected with the inner connecting pins 225 which are far away by an arc-shaped strip 226.
The spring piece layer 22 and the outer protective shell 21 are metal pieces.
In this embodiment, the elastic sheet layer 22 includes a middle circular sheet 221 and an edge annular ring 222, and three connecting pins 224 are formed on the outer side wall of the middle circular sheet 221, and three inner connecting pins 225 are also formed on the inner side wall of the edge annular ring 222, each connecting pin 224 is located between two adjacent inner connecting pins 225, and is connected with the inner connecting pin 225 far away by an arc-shaped strip 226, and the length of the arc-shaped strip 226 is long, so that the amplitude of the vibration generated by the middle circular sheet 221 driven by the concentric fixing column 23 is increased, and the sound effect of transmitting sound waves generated by the vibration to people through the skull is improved.
When in use, the elastic connecting sleeve 1 can be arranged in the mounting hole 12 on the bottom surface of the mounting cavity formed in the earphone shell 10, and can be directly and fixedly connected by adopting an adhesive, and the middle part of the outer side wall of the outer protective shell 21 can also be fixedly provided with the elastic connecting sleeve 1 as shown in fig. 2 and 4, and the outer side wall of the elastic connecting sleeve 1 is pressed against the inner side wall of the mounting hole 12. Simultaneously, with shaping annular bulge 211 on the middle part lateral wall of outer protective housing 21, shaping internal thread on the inside wall of mounting hole 12, bottom retainer plate 2 spiro union is in the lower part of mounting hole 12, and the inside wall lower part shaping of bottom retainer plate 2 has annular spacing portion, and the bottom surface of outer protective housing 21 is pressed on the top surface of annular spacing portion, and the inside wall upper portion spiro union of mounting hole 12 has last spacing ring body 3, and the bottom surface of last spacing ring body 3 is pressed on the top surface of annular bulge 211. The bottom surface of mounting hole 12 is fixed with vibrating plate 4, the top surface middle part of vibrating plate 4 is fixed with protruding connecting block 41, the lower protective housing has been put to the card in the bottom of outer protective housing 21, the middle part shaping of lower protective housing has main central through-hole, the bottom surface of conducting through-hole 223 is stretched out to the bottom of concentric fixed column 23, the top surface of the main central through-hole of lower protective housing is stretched out at protruding connecting block 41's top, the bottom plug bush of concentric fixed column 23 is in protruding connecting block 41's the fashioned jack in top surface middle part, the bottom lateral wall of concentric fixed column 23 presses on the inside wall of jack, realize the connection.
The outer protective shell 21 is limited and fixed by adopting the bottom limiting ring 2 and the upper limiting ring body 3, so that the lower protective shell at the lower part of the outer protective shell 21 cannot be contacted with the vibrating plate 4 to influence the effect of the vibrating plate 4 in transmitting vibration. Meanwhile, during installation, the external protection shell 21 and the installation hole 112 can be filled with adhesive before further fixation is realized, and the fixation effect is improved.
Claims (4)
1. A bone conduction sounding unit, comprising a cylindrical outer protective shell (21), characterized in that: an elastic sheet layer (22) is arranged on the inner side wall of the bottom of the outer protective shell (21);
the shell fragment layer (22) include middle part circular piece (221) and limit portion annular ring (222), the lateral wall of limit portion annular ring (222) sets up on the inside wall of outer protective housing (21), the middle part shaping of middle part circular piece (221) has conduction through-hole (223), the shaping has a plurality of connecting legs (224) on the lateral wall of middle part circular piece (221), the shaping has interior connecting leg (225) that corresponds on the inside wall of limit portion annular ring (222) also, the one end shaping of arc strip (226) is on interior connecting leg (225) that corresponds, the other end shaping is on connecting leg (224) that corresponds, all arc strip (226) equipartitions are between middle part circular piece (221) and limit portion annular ring (222).
2. The bone conduction sound generating unit according to claim 1, wherein: three connecting pins (224) are formed on the outer side wall of the middle circular sheet (221), three inner connecting pins (225) are also formed on the inner side wall of the edge annular ring (222), the three connecting pins (224) are uniformly distributed on the outer side wall of the middle circular sheet (221) by taking the central axis of the middle circular sheet (221) as the center, and the three inner connecting pins (225) are uniformly distributed on the inner side wall of the edge annular ring (222) by taking the central axis of the middle circular sheet (221) as the center;
each connecting pin (224) is positioned between two adjacent inner connecting pins (225), and is connected with the inner connecting pins (225) which are far away through an arc-shaped strip (226).
3. A bone conduction sound generating unit according to claim 2, wherein: the edge annular ring (222) is formed on the inner side wall of the bottom of the outer protective shell (21).
4. The bone conduction sound generating unit according to claim 1, wherein: the outer protective shell (21) and the elastic sheet layer (22) are metal pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320659625.3U CN219499517U (en) | 2023-03-30 | 2023-03-30 | Bone conduction sounding unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320659625.3U CN219499517U (en) | 2023-03-30 | 2023-03-30 | Bone conduction sounding unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219499517U true CN219499517U (en) | 2023-08-08 |
Family
ID=87516065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320659625.3U Active CN219499517U (en) | 2023-03-30 | 2023-03-30 | Bone conduction sounding unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219499517U (en) |
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2023
- 2023-03-30 CN CN202320659625.3U patent/CN219499517U/en active Active
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