CN118055354A - Telephone receiver - Google Patents
Telephone receiver Download PDFInfo
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- CN118055354A CN118055354A CN202211440949.4A CN202211440949A CN118055354A CN 118055354 A CN118055354 A CN 118055354A CN 202211440949 A CN202211440949 A CN 202211440949A CN 118055354 A CN118055354 A CN 118055354A
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- receiver
- cavity
- shell
- piezoelectric
- sound
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- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 8
- 239000013013 elastic material Substances 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 12
- 239000000565 sealant Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 238000013016 damping Methods 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
The invention provides a receiver, which comprises: a receiver body and a housing; the receiver main body is arranged in the shell, a cavity is formed between the receiver main body and the inner wall surface of the shell, and a sound transmission hole communicated with the cavity is formed in the shell; the receiver body includes: the piezoelectric vibration module is used for generating a vibration signal by utilizing the inverse piezoelectric effect when the electric signal is excited; and the conduction module is used for conducting the vibration signal to the cavity. The piezoelectric vibration module in the receiver body generates a vibration signal when the electric signal is excited, and the conduction module conducts the vibration signal into a cavity between the receiver body and the shell. The sound transmission hole between the receiver main body and the shell is used for communicating the cavity with the outside of the receiver, so that air or water in the cavity can vibrate freely. The problem that the traditional telephone receiver sounding principle is that a paper cone or vibrating diaphragm with lighter mass vibrates in air, the resistance received in water is thousands of times greater than that of air, and normal use cannot be achieved is solved.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a telephone receiver.
Background
The underwater communication technology ensures the communication capability of a diver with other people during underwater operation, so that an important device for underwater operation during underwater communication receiver converts communication signals into sound signals and is heard by a user. However, the traditional sound producing principle of the telephone receiver is that a cone or a vibrating diaphragm with lighter mass vibrates in air, and the resistance in water is thousands times greater than that of the air, so that the telephone receiver cannot be used normally.
Disclosure of Invention
The invention aims to provide a telephone receiver which is used for solving the problems that in the prior art, the sound production principle of the telephone receiver is that a paper cone or a vibrating diaphragm with lighter mass vibrates in air, the resistance in water is thousands of times greater than that of the air, and the telephone receiver cannot be normally used.
In order to solve the above technical problem, an embodiment of the present invention provides a receiver, including: a receiver body and a housing;
the receiver main body is arranged in the shell, a cavity is formed between the receiver main body and the inner wall surface of the shell, and a sound transmission hole communicated with the cavity is formed in the shell;
the receiver body includes:
The piezoelectric vibration module is used for generating a vibration signal by utilizing the inverse piezoelectric effect when the electric signal is excited;
And the conduction module is used for conducting the vibration signal to the cavity.
Optionally, the receiver, wherein the conduction module includes:
an elastic material body forming a containing space, wherein the piezoelectric vibration module is arranged in the containing space;
And the sealant covers the piezoelectric vibration module and seals the accommodating space.
Optionally, the receiver, wherein, the piezoelectric vibration module includes a first electrode slice, a piezoelectric slice and a second electrode slice that are stacked in order.
Optionally, the receiver is provided with a plurality of sound-transmitting holes, and the sound-transmitting holes are uniformly arranged around the receiver body.
Optionally, the receiver includes a closed top surface and a bottom surface with an opening, the bottom surface is provided with a plurality of protrusions extending from an inner wall of the housing, the protrusions are connected with an outer wall surface of the receiver body, and the outer wall surface of the receiver body, the inner wall surface of the housing and two adjacent protrusions enclose to form one sound transmission hole.
Optionally, the receiver, wherein the elastic material body is made of soft acoustic damping material.
Optionally, the receiver, wherein the first electrode plate and the second electrode plate are made of conductive materials.
Optionally, the receiver, wherein the first electrode slice and the second electrode slice are connected with a communication system through wires respectively.
The technical scheme of the invention has the following beneficial effects:
In the scheme, the piezoelectric vibration module in the receiver main body generates a vibration signal when the electric signal is excited, and the conduction module conducts the vibration signal into the cavity between the receiver main body and the shell. The sound transmission hole between the receiver main body and the shell is used for communicating the cavity with the outside of the receiver, so that air or water in the cavity can vibrate freely. The problem that the traditional telephone receiver sounding principle is that a paper cone or vibrating diaphragm with lighter mass vibrates in air, the resistance received in water is thousands of times greater than that of air, and normal use cannot be achieved is solved.
Drawings
Fig. 1 is a front view of a receiver according to an embodiment of the present invention;
Fig. 2 is a bottom view of a receiver according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a multi-physical field finite element simulation analysis result of a receiver according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an assembled frequency response curve of a receiver according to an embodiment of the present invention.
Symbol description:
1-a piezoelectric sheet; 2-a first electrode sheet; 3-a second electrode sheet; 4-an elastic material body; 5-sealing glue; 6-sound-transmitting holes; 7-a housing; 8-cavity.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a telephone receiver, which aims at the problems that in the prior art, the sound production principle of the telephone receiver is that a paper cone or a vibrating diaphragm with lighter mass vibrates in air, the resistance in water is thousands of times greater than that of the air, and the telephone receiver cannot be normally used.
As shown in fig. 1, an embodiment of the present invention provides a receiver, including: a receiver body and a housing 7;
The receiver main body is arranged in the shell 7, a cavity 8 is formed between the receiver main body and the inner wall surface of the shell 7, and the shell 7 is provided with a sound transmission hole 6 communicated with the cavity 8;
the receiver body includes:
The piezoelectric vibration module is used for generating a vibration signal by utilizing the inverse piezoelectric effect when the electric signal is excited;
And the conduction module is used for conducting the vibration signal to the cavity 8.
In this embodiment the piezoelectric vibration module in the receiver body generates the vibration signal when the electrical signal is excited, and the conduction module conducts the vibration signal into the cavity 8 between the receiver body and the housing 7. The sound-transmitting hole 6 between the receiver body and the housing 7 communicates the cavity 8 with the outside of the receiver, so that air or water in the cavity 8 is free to vibrate. The problem that the traditional telephone receiver sounding principle is that a paper cone or vibrating diaphragm with lighter mass vibrates in air, the resistance received in water is thousands of times greater than that of air, and normal use cannot be achieved is solved.
Optionally, the receiver, wherein the conduction module includes:
an elastic material body 4 forming a containing space, wherein the piezoelectric vibration module is arranged in the containing space;
and the sealant 5 covers the piezoelectric vibration module, and the sealant 5 seals the accommodating space.
In this embodiment, the elastic material body 4 and the sealant 5 form a sealed accommodating space, and the piezoelectric vibration module is placed inside the accommodating space, so that the piezoelectric vibration module is prevented from contacting with external water environment to affect the normal operation of the receiver.
Optionally, the receiver, wherein the piezoelectric vibration module includes a first electrode slice 2, a piezoelectric slice 1 and a second electrode slice 3 that are sequentially stacked.
In this embodiment, the piezoelectric sheet 1 is excited by an electrical signal between the first electrode sheet 2 and the second electrode sheet 3, and since the piezoelectric sheet 1 is made of a piezoelectric material, mechanical vibration is generated by means of the inverse piezoelectric effect of itself. Compared with the telephone receiver in the prior art, the telephone receiver vibrates and sounds in the air through the paper cone or the vibrating diaphragm with lighter mass, the telephone receiver is more suitable for being used in an underwater environment through solid vibration and sound production, and the vibration and sound production effect is better.
As shown in fig. 2, optionally, the plurality of the sound-transmitting holes 6 are uniformly arranged around the receiver body.
Optionally, the receiver includes the case 7 including a closed top surface and a bottom surface with an opening, the bottom surface is provided with a plurality of protrusions extending from an inner wall of the case 7, the protrusions are connected with an outer wall surface of the receiver body, and the outer wall surface of the receiver body, the inner wall surface of the case 7, and two adjacent protrusions enclose to form one sound-transmitting hole 6.
In this embodiment, the sound-transmitting holes 6 are uniformly disposed around the receiver body, so as to facilitate uniform transmission of sound signals. The structure of the cavity 8 is such that mechanical vibrations of the piezoelectric sheet 1 are not hindered on the upper side of the first electrode sheet 2. The sound-transmitting hole 6 communicates the cavity 8 with the exterior of the receiver, and when the receiver body vibrates, the sound-transmitting hole 6 can enable water or air in the cavity 8 to vibrate freely.
Optionally, the receiver is made of soft acoustic damping material, and the elastic material body 4 is made of soft acoustic damping material.
In this embodiment, the elastic material body 4 transmits the vibration signal of the piezoelectric sheet 1 to the external space of the receiver. The sealant 5 is located above the first electrode plate 2, and forms a closed space with the elastic material body 4, so that the piezoelectric plate 1, the first electrode plate 2 and the second electrode plate 3 are prevented from contacting with external water environment.
It should be noted that, in the embodiment of the present invention, the piezoelectric sheet 1 is made of a piezoelectric ceramic material, the elastic material body 4 is made of a seawater-proof rubber TPU, the sealant 5 is made of a waterproof potting adhesive, the housing 7 is made of plastic, and other embodiments that can achieve the same effect and are completed by using other materials are also within the scope of protection of the present invention.
As shown in fig. 1, 3 and 4, optionally, the receiver is formed by using a conductive material for the first electrode pad 2 and the second electrode pad 3.
Optionally, the receiver, wherein the first electrode pad 2 and the second electrode pad 3 are connected to a communication system through wires, respectively.
In this embodiment, the first electrode piece 2 and the second electrode piece 3 are respectively connected with a communication system through wires so as to generate an electrical signal to excite the piezoelectric piece 1, and the piezoelectric piece 1 generates mechanical vibration so as to induce the mechanical vibration of the receiver body, and the mechanical vibration is conducted to the outside of the receiver through the elastic material body 4 to form sound, so that the sound is received by a user, and a receiving function is completed.
It should be noted that the embodiment of the invention adopts solid piezoelectric material to vibrate and sound. Because the bulk modulus of the solid piezoelectric material is generally in the order of hundreds of GPa, the vibration sounding of the embodiment of the invention cannot be influenced by the pressure of external liquid under the water environment with the depth of tens of meters. The whole receiver body is a resonance system, and the receiver body is composed of the sealant 5, the first electrode plate 2, the piezoelectric plate 1, the second electrode plate 3 and the elastic material body 4. By designing the thickness and diameter of the first electrode plate 2, the piezoelectric plate 1 and the second electrode plate 3, the main mode resonant frequency of the resonant system is designed to be near 2kHz, so that the high conversion rate of the microphone to voice frequency signals is realized. Fig. 3 is a schematic diagram of a multi-physical field finite element simulation analysis result of a receiver according to an embodiment of the present invention. The receiver had two resonance peaks at 1.9kHz and 17kHz on a standard artificial ear. The sub-graph in fig. 3 shows the mode distribution, whereby it can be seen that 1.9kHz is the main mode and 17kHz is the lateral third order mode.
Fig. 4 is a schematic diagram of an assembled frequency response curve of a receiver according to an embodiment of the present invention. The sensitivity is ensured by preventing the overflow of sound by the joint of the tested underwater communication receiver and the artificial ear in the frequency band below 1.9 kHz. The actual measurement result is in the frequency band range between 100Hz and 4kHz, and the sensitivity of the underwater communication receiver can reach 85dB/mW, so that the high conversion rate of the underwater communication receiver in the voice frequency band is ensured; the sensitivity in the rest frequency band is lower, which produces better suppression of noise in the environment.
It should be noted that, the above device provided in the embodiment of the present invention can implement all the method steps implemented in the method embodiment and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. A receiver, comprising: a receiver body and a housing (7);
The telephone receiver is characterized in that the telephone receiver main body is arranged in the shell (7), a cavity (8) is formed between the telephone receiver main body and the inner wall surface of the shell (7), and the shell (7) is provided with a sound transmission hole (6) communicated with the cavity (8);
the receiver body includes:
The piezoelectric vibration module is used for generating a vibration signal by utilizing the inverse piezoelectric effect when the electric signal is excited;
And the conduction module is used for conducting the vibration signal to the cavity (8).
2. The receiver of claim 1, wherein the conduction module comprises:
An elastic material body (4) forming a containing space, wherein the piezoelectric vibration module is arranged in the containing space;
And the sealant (5) covers the piezoelectric vibration module, and the sealant (5) seals the accommodating space.
3. The receiver according to claim 1, wherein the piezoelectric vibration module comprises a first electrode sheet (2), a piezoelectric sheet (1) and a second electrode sheet (3) which are stacked in this order.
4. A receiver according to claim 1, characterized in that the sound-transmitting apertures (6) are plural and are evenly arranged around the receiver body.
5. A receiver according to claim 1, characterized in that the housing (7) comprises a closed top surface and a bottom surface with an opening, wherein a plurality of protrusions extending from the inner wall of the housing (7) are arranged on the bottom surface, the protrusions are connected with the outer wall surface of the receiver body, and the outer wall surface of the receiver body, the inner wall surface of the housing (7) and two adjacent protrusions enclose one sound-transmitting hole (6).
6. A telephone receiver according to claim 2, characterized in that the elastic material body (4) is made of soft acoustic damping material.
7. A receiver according to claim 3, characterized in that the first electrode pad (2) and the second electrode pad (3) are made of an electrically conductive material.
8. A receiver according to claim 3, characterized in that the first electrode pad (2) and the second electrode pad (3) are connected to a communication system by means of wires, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211440949.4A CN118055354A (en) | 2022-11-17 | 2022-11-17 | Telephone receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211440949.4A CN118055354A (en) | 2022-11-17 | 2022-11-17 | Telephone receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118055354A true CN118055354A (en) | 2024-05-17 |
Family
ID=91043783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211440949.4A Pending CN118055354A (en) | 2022-11-17 | 2022-11-17 | Telephone receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118055354A (en) |
-
2022
- 2022-11-17 CN CN202211440949.4A patent/CN118055354A/en active Pending
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