CN212211387U - Bone conduction telephone receiver with filter circuit - Google Patents
Bone conduction telephone receiver with filter circuit Download PDFInfo
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- CN212211387U CN212211387U CN202020841070.0U CN202020841070U CN212211387U CN 212211387 U CN212211387 U CN 212211387U CN 202020841070 U CN202020841070 U CN 202020841070U CN 212211387 U CN212211387 U CN 212211387U
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- filter circuit
- capacitor
- sponge
- bone conduction
- resistor
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Abstract
The utility model discloses a bone conduction receiver with a filter circuit, which comprises a shell, a backing ring, a vibrating reed, a bracket, a magnet, a supporting seat, a coil, a PCB (printed circuit board), a first sponge and a second sponge; the backing ring is abutted against the inner bottom of the shell, the vibrating plate is abutted against the upper end of the backing ring, the supporting seat is abutted against the upper end of the vibrating plate, the bracket is abutted against the upper end of the vibrating plate, the magnet is fixed in the bracket, and the PCB is abutted against the upper end of the supporting seat and seals the opening of the accommodating cavity of the shell; the first sponge is fixed on the inner side surface of the PCB, the coil is coated outside the first sponge, the second sponge is fixed on the lower end surface of the vibrating piece, and the PCB is provided with a filter circuit; therefore, the bone conduction receiver solves the problems that when the sound tone of the bone conduction receiver is large, the vibrating reed is easy to vibrate and bottom and has noise, improves the definition and the tone quality of the sound sent and taken by the bone conduction receiver, ensures the sound sending quality of the bone conduction receiver, and enables a user to obtain a better experience effect.
Description
Technical Field
The utility model belongs to the technical field of acoustics components and parts and specifically relates to indicate a bone conduction receiver with filter circuit.
Background
The bone conduction receiver is mainly suitable for the following people: some congenital aplasia of the external ear such as blocked external auditory canal, deaf individuals without pinna; some patients with external ear diseases, middle ear diseases such as otitis media with purulent otitis media and who are not suitable for wearing air conduction hearing aids; the bone conduction type hearing-aid is suitable for hearing-loss patients with hearing loss less than or equal to 70dBHL, conductive hearing loss, normal bone conduction hearing and other conductive hearing loss patients, and the bone conduction type receiver enables a user to hear sound mainly through the principle of bone conduction.
The bone conduction receiver at present mainly has components such as shielding shell, trembler, support, magnet, circuit board, coil to constitute, and in the prior art, when the bone conduction receiver was transferred greatly to the sound, the trembler appears bottoming (collide the bottom of shielding shell promptly) and the phenomenon that has the noise because of the vibration easily, leads to its definition and the tone quality of sending and getting the sound not good enough, can't guarantee to send the sound quality, influences user's experience effect.
Therefore, a new technology needs to be developed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses to the disappearance that prior art exists, its main objective provides a bone conduction receiver with filter circuit, and it has solved when bone conduction receiver sound tone is big, and the easy vibration of trembler is bottomed and has the condition of noise, has improved bone conduction receiver and has sent the definition and the tone quality of getting the sound, has guaranteed the send sound quality of bone conduction receiver, makes the user obtain better experience effect.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a bone conduction receiver with a filter circuit comprises a shell, a backing ring, a vibrating piece, a bracket, a magnet, a supporting seat, a coil, a PCB (printed Circuit Board), a first sponge and a second sponge;
the shell is provided with a containing cavity with an upward opening, and the backing ring, the vibrating piece, the bracket, the magnet, the supporting seat, the coil, the PCB, the first sponge and the second sponge are all positioned in the containing cavity; the backing ring, the bracket and the supporting seat are all arranged in a hollow mode, the backing ring abuts against the inner bottom of the shell, the vibrating plate abuts against the upper end of the backing ring, the supporting seat abuts against the upper end of the vibrating plate, the bracket abuts against the upper end of the vibrating plate and is located in the supporting seat, the magnet is fixed in the bracket, and the PCB abuts against the upper end of the supporting seat and covers the opening of the accommodating cavity; one end of the coil is fixed on the inner side surface of the PCB, and the other end of the coil extends into the bracket and surrounds the outer side of the magnet;
the first sponge is fixed on the inner side face of the PCB, the coil is wrapped outside the first sponge, the second sponge is fixed on the lower end face of the vibrating piece, and the PCB is provided with a filter circuit.
As a preferred scheme, the filter circuit is a first-order high-pass filter circuit, the first-order high-pass filter circuit includes a first input terminal, a first output terminal, a first capacitor, and a first resistor, two ends of the first capacitor are respectively connected to the first input terminal and the first output terminal, one end of the first resistor is connected between the first capacitor and the first output terminal, and the other end of the first resistor is grounded.
As a preferable scheme, the value range of the first capacitor is 10pF-100 uF.
As a preferable scheme, the value range of the first resistor is 10R-50K.
As a preferred scheme, the filter circuit is a second-order high-pass filter circuit, the second-order high-pass filter circuit includes a second input terminal, a second output terminal, a second capacitor, a third capacitor, a second resistor, and a third resistor, two ends of the second capacitor are respectively connected to the second input terminal and one end of the third capacitor, and the other end of the third capacitor is connected to the second output terminal; one end of the second resistor is connected between the second capacitor and the third capacitor, and the other end of the second resistor is grounded; one end of the third resistor is connected between the third capacitor and the second output end, and the other end of the third resistor is grounded.
As a preferable scheme, the value ranges of the second capacitor and the third capacitor are both 10pF-100 uF.
As a preferable scheme, the value ranges of the second resistor and the third resistor are both 10R-50K.
As a preferred scheme, the first sponge is arranged on the inner side surface of the PCB in a suspended manner and is located above the magnet.
Preferably, the second sponge is suspended on the lower end surface of the vibrating plate and located in the middle of the lower end surface of the vibrating plate, and a space is reserved between the second sponge and the inner bottom of the shell.
As a preferable scheme, the vibrating piece comprises a main body part, wherein a plurality of annular grooves are formed in the main body part, and are sequentially arranged around the center of the main body part at alternating intervals; each annular groove is provided with a head end, a tail end and a bending part, and the bending part is positioned between the corresponding head end and the tail end; the head end of each annular groove extends to the outer side of the bending part of the previous adjacent annular groove, and the tail end of each annular groove extends to the inner side of the bending part of the next adjacent annular groove.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, concretely speaking, can know from above-mentioned technical scheme, it mainly through set up filter circuit on the PCB board, so, accessible filter circuit's processing and regulation, make it solve bone conduction receiver sound tone when big, the easy vibration of trembler is bottomed and there is the condition of noise, improved bone conduction receiver send get the definition and tone quality of sound, guaranteed the send sound quality of bone conduction receiver, make the user obtain better experience effect; and the combined design of the first sponge and the second sponge can reduce vibration and noise under the action of the sponge when the sound of the bone conduction receiver is amplified, thereby being beneficial to ensuring the tone quality of the bone conduction receiver.
To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions achieved thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a perspective view of the overall structure of a first embodiment of the present invention;
fig. 2 is an exploded view of a first embodiment of the present invention;
fig. 3 is a cross-sectional view of a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a first-order high-pass filter circuit according to a first embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second-order high-pass filter circuit according to a first embodiment of the present invention;
fig. 6 is a schematic structural view of a vibrating piece according to a second embodiment of the present invention;
fig. 7 is a schematic structural view of a vibrating piece according to a third embodiment of the present invention;
fig. 8 is a schematic structural view of a vibrating reed according to a fourth embodiment of the present invention.
The attached drawings indicate the following:
10. outer shell 20, backing ring
30. Vibrating reed 31 and main body
32. Annular groove 33, bend
40. Bracket 50 and magnet
60. Support seat 70 and coil
80. PCB board 101, first sponge
102. Second sponge 103, holding chamber.
Detailed Description
Please refer to fig. 1 to 8, which show the detailed structures of four embodiments of the present invention; fig. 1 to 5 mainly show a specific structure of the first embodiment, fig. 6 mainly shows a specific structure of the second embodiment, fig. 7 mainly shows a specific structure of the third embodiment, and fig. 8 mainly shows a specific structure of the fourth embodiment.
A bone conduction receiver with a filter circuit comprises a shell 10, a backing ring 20, a vibrating piece 30, a bracket 40, a magnet 50, a supporting seat 60, a coil 70, a PCB 80, a first sponge 101 and a second sponge 102; wherein:
the housing 10 has a containing cavity 103 with an upward opening, and the grommet 20, the vibrating reed 30, the bracket 40, the magnet 50, the supporting base 60, the coil 70, the PCB 80, the first sponge 101 and the second sponge 102 are all located in the containing cavity 103; the backing ring 20, the bracket 40 and the supporting seat 60 are all hollow, the backing ring 20 abuts against the inner bottom of the shell 10, the vibrating reed 30 abuts against the upper end of the backing ring 20, the supporting seat 60 abuts against the upper end of the vibrating reed 30, the bracket 40 abuts against the upper end of the vibrating reed 30 and is located in the supporting seat 60, the magnet 50 is bonded and fixed in the bracket 40, and the PCB board 80 abuts against the upper end of the supporting seat 60 and seals the opening of the accommodating cavity 103; one end of the coil 70 is fixed on the inner side of the PCB 80, and the other end extends into the bracket 40 and surrounds the outer side of the magnet 50; the first sponge 101 is fixed on the inner side of the PCB 80, the coil 70 is wrapped outside the first sponge 101, the second sponge 102 is fixed on the lower end of the vibrating reed 30, and the PCB 80 is provided with a filter circuit. Borrow this, through set up filter circuit on PCB board 80, so, accessible filter circuit's processing and regulation make it solve bone conduction receiver sound tone when big, the easy vibration of trembler 30 is bottomed and there is the condition of noise, has improved bone conduction receiver and has sent definition and tone quality of getting sound, has guaranteed the sending sound quality of bone conduction receiver, makes the user obtain better experience effect. And the combined design of the first sponge 101 and the second sponge 102 can reduce vibration and noise through the action of the sponges when the sound of the bone conduction receiver is amplified, thereby being beneficial to ensuring the tone quality of the bone conduction receiver.
The filter circuit can be a first-order high-pass filter circuit or a second-order high-pass filter circuit, and can be set as the first-order high-pass filter circuit or the second-order high-pass filter circuit according to actual production requirements; specifically, as shown IN fig. 4, the first-order high-pass filter circuit includes a first input terminal (IN), a first output terminal (OUT), a first capacitor (C), and a first resistor (R), two ends of the first capacitor are respectively connected to the first input terminal (IN) and the first output terminal (OUT), one end of the first resistor (R) is connected between the first capacitor (C) and the first output terminal (OUT), and the other end of the first resistor (R) is grounded. The first output terminal (OUT) is connected to the coil 70. In this embodiment, preferably, the value range of the first capacitor is 10pF-100 uF; the value range of the first resistor is 10R-50K. Certainly, the value ranges of the first capacitor and the first resistor are not limited to the above ranges, and the values of the first capacitor and the first resistor may also be set according to actual situations, which is not described herein.
As shown IN fig. 5, the second-order high-pass filter circuit includes a second input terminal (IN), a second output terminal (OUT), a second capacitor (C1), a third capacitor (C2), a second resistor (R1), and a third resistor (R2), where two ends of the second capacitor are respectively connected to the second input terminal and one end of the third capacitor, and the other end of the third capacitor is connected to the second output terminal; one end of the second resistor is connected between the second capacitor and the third capacitor, and the other end of the second resistor is grounded; one end of the third resistor is connected between the third capacitor and the second output end, and the other end of the third resistor is grounded. In this embodiment, preferably, the value ranges of the second capacitor and the third capacitor are both 10pF to 100 uF; the value ranges of the second resistor and the third resistor are both 10R-50K. Certainly, the value ranges of the second capacitor, the third capacitor, the second resistor and the third resistor are not limited to the above ranges, and the values of the second capacitor, the third capacitor, the second resistor and the third resistor may also be set according to actual situations, which is not described herein.
And the first sponge 101 is suspended on the inner side surface of the PCB 80 and is located above the magnet 50. The second sponge 102 is suspended on the lower end surface of the vibrating reed 30 and located in the middle of the lower end surface of the vibrating reed 30, and a space is left between the second sponge 102 and the inner bottom of the housing 10.
The vibrating reed 30 further comprises a main body 31, wherein a plurality of annular grooves 32 are formed in the main body 31, and the annular grooves 32 are sequentially arranged around the center of the main body 31 in an alternating and uniform manner; each annular groove 32 is provided with a head end, a tail end and a bending part 33, and the bending part 33 is positioned between the corresponding head end and the corresponding tail end; the head end of each annular groove 32 extends to the outer side of the bent portion 33 of the previous annular groove 32 adjacent to the head end, and the tail end of each annular groove 32 extends to the inner side of the bent portion 33 of the next annular groove 32 adjacent to the tail end.
As shown in fig. 2, in the first embodiment, the vibrating plate 30 is provided with three annular grooves; as shown in fig. 6, in the second embodiment, the vibrating plate 30 is provided with four annular grooves; as shown in fig. 7, in the third embodiment, the vibrating plate 30 is provided with five annular grooves; as shown in fig. 8, in the fourth embodiment, the vibrating plate 30 is provided with six annular grooves; of course, the number of the annular grooves of the vibrating plate 30 is not limited to the above number, and may be other numbers, and only needs to be set according to actual production requirements, which is not described herein.
In summary, the utility model is mainly designed by arranging the filter circuit on the PCB, so that the situation that the vibrating reed is easy to vibrate and bottom and has noise when the bone conduction receiver has large sound tone can be solved by processing and adjusting the filter circuit, the definition and the tone quality of the sound sent and taken by the bone conduction receiver are improved, the sound sending quality of the bone conduction receiver is ensured, and the user obtains better experience effect; and the combined design of the first sponge and the second sponge can reduce vibration and noise under the action of the sponge when the sound of the bone conduction receiver is amplified, thereby being beneficial to ensuring the tone quality of the bone conduction receiver.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (10)
1. A bone conduction receiver with a filter circuit is characterized in that: the vibrating reed comprises a shell, a backing ring, a vibrating reed, a bracket, a magnet, a supporting seat, a coil, a PCB (printed circuit board), a first sponge and a second sponge;
the shell is provided with a containing cavity with an upward opening, and the backing ring, the vibrating piece, the bracket, the magnet, the supporting seat, the coil, the PCB, the first sponge and the second sponge are all positioned in the containing cavity; the backing ring, the bracket and the supporting seat are all arranged in a hollow mode, the backing ring abuts against the inner bottom of the shell, the vibrating plate abuts against the upper end of the backing ring, the supporting seat abuts against the upper end of the vibrating plate, the bracket abuts against the upper end of the vibrating plate and is located in the supporting seat, the magnet is fixed in the bracket, and the PCB abuts against the upper end of the supporting seat and covers the opening of the accommodating cavity; one end of the coil is fixed on the inner side surface of the PCB, and the other end of the coil extends into the bracket and surrounds the outer side of the magnet;
the first sponge is fixed on the inner side face of the PCB, the coil is wrapped outside the first sponge, the second sponge is fixed on the lower end face of the vibrating piece, and the PCB is provided with a filter circuit.
2. The bone conduction receiver with the filter circuit as claimed in claim 1, wherein: the filter circuit is a first-order high-pass filter circuit, the first-order high-pass filter circuit comprises a first input end, a first output end, a first capacitor and a first resistor, two ends of the first capacitor are respectively connected to the first input end and the first output end, one end of the first resistor is connected between the first capacitor and the first output end, and the other end of the first resistor is grounded.
3. The bone conduction receiver with the filter circuit as claimed in claim 2, wherein: the value range of the first capacitor is 10pF-100 uF.
4. The bone conduction receiver with the filter circuit as claimed in claim 2, wherein: the value range of the first resistor is 10R-50K.
5. The bone conduction receiver with the filter circuit as claimed in claim 1, wherein: the filter circuit is a second-order high-pass filter circuit, the second-order high-pass filter circuit comprises a second input end, a second output end, a second capacitor, a third capacitor, a second resistor and a third resistor, two ends of the second capacitor are respectively connected to the second input end and one end of the third capacitor, and the other end of the third capacitor is connected to the second output end; one end of the second resistor is connected between the second capacitor and the third capacitor, and the other end of the second resistor is grounded; one end of the third resistor is connected between the third capacitor and the second output end, and the other end of the third resistor is grounded.
6. The bone conduction receiver with the filter circuit as claimed in claim 5, wherein: the value ranges of the second capacitor and the third capacitor are both 10pF-100 uF.
7. The bone conduction receiver with the filter circuit as claimed in claim 5, wherein: the value ranges of the second resistor and the third resistor are both 10R-50K.
8. The bone conduction receiver with the filter circuit as claimed in claim 1, wherein: the first sponge is arranged on the inner side face of the PCB in a suspending mode and is located above the magnet.
9. The bone conduction receiver with the filter circuit as claimed in claim 1, wherein: the second sponge is arranged on the lower end face of the vibrating piece in a suspended mode and located in the middle area of the lower end face of the vibrating piece, and a space is reserved between the second sponge and the inner bottom of the shell.
10. The bone conduction receiver with the filter circuit as claimed in claim 1, wherein: the vibrating piece comprises a main body part, wherein a plurality of annular grooves are formed in the main body part, and are sequentially arranged around the center of the main body part at intervals in an alternating mode; each annular groove is provided with a head end, a tail end and a bending part, and the bending part is positioned between the corresponding head end and the tail end; the head end of each annular groove extends to the outer side of the bending part of the previous adjacent annular groove, and the tail end of each annular groove extends to the inner side of the bending part of the next adjacent annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020841070.0U CN212211387U (en) | 2020-05-19 | 2020-05-19 | Bone conduction telephone receiver with filter circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020841070.0U CN212211387U (en) | 2020-05-19 | 2020-05-19 | Bone conduction telephone receiver with filter circuit |
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| Publication Number | Publication Date |
|---|---|
| CN212211387U true CN212211387U (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020841070.0U Active CN212211387U (en) | 2020-05-19 | 2020-05-19 | Bone conduction telephone receiver with filter circuit |
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| CN (1) | CN212211387U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7357947B2 (en) | 2021-12-13 | 2023-10-10 | 株式会社エムアイジェー | bone conduction speaker |
-
2020
- 2020-05-19 CN CN202020841070.0U patent/CN212211387U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7357947B2 (en) | 2021-12-13 | 2023-10-10 | 株式会社エムアイジェー | bone conduction speaker |
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