CN205039985U - Earphone - Google Patents
Earphone Download PDFInfo
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- CN205039985U CN205039985U CN201520797523.3U CN201520797523U CN205039985U CN 205039985 U CN205039985 U CN 205039985U CN 201520797523 U CN201520797523 U CN 201520797523U CN 205039985 U CN205039985 U CN 205039985U
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- phonation unit
- electric ceramic
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- unit
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Abstract
The utility model discloses an earphone, including external shell and with the external shell matched with lid, accommodated the phonation unit in the cavity that external shell and lid formed, the phonation unit includes moving -coil phonation unit and piezoceramics phonation unit, the moving -coil phonation unit includes the vibrating diaphragm, is provided with the phonate hole on the lid, the piezoceramics phonation unit sets up in one side that is close to the phonate hole of vibrating diaphragm, the piezoceramics phonation unit is provided with the leading note structure that is linked together with the phonate hole. The utility model discloses an earphone can extend earphone's high frequency cutoff frequency, promotes earphone's tone quality effect, and the cost is relatively low simultaneously, easily popularizes and applies.
Description
Technical field
The utility model relates to electroacoustic field, is specifically related to a kind of earphone.
Background technology
Earphone is a kind of device transmitting audio signal, its application widely, often with the terminal electronics fit applications such as mobile phone, computer, MP3.Along with science and technology and the developing rapidly of electronic industry, for the performance of earphone, be proposed more and more higher requirement.From structure, the phonation unit that earphone generally includes outside housing and is contained in external shell, phonation unit is the core component that ear-phone function realizes, and has very important impact to the performance of earphone products.
Existing Headphone structure, be adopt moving-coil loudspeaker as phonation unit mostly, the high-frequency cut-off frequency of this kind of earphone is within 10K hertz; In addition, to earphone, often need the performance simultaneously taking into account its low-and high-frequency, acoustical quality is difficult to reach higher level.For the problems referred to above, extend at present earphone high-frequency cut-off frequency, expand the mode that frequency range can adopt moving-coil loudspeaker and dynamic iron loudspeaker combination, can make after high-frequency cut-off frequency extends to 10k hertz like this.But the complex process of dynamic iron loudspeaker, its technical requirement is also higher, adopts such scheme can earphone production cost be caused too high because of expensive unavoidably.Therefore, be necessary to provide a kind of new solution, extend the high-frequency cut-off frequency of earphone with lower cost.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of earphone, and it has good high frequency performance, and high-frequency cut-off frequency is extended on existing basis, and manufacturing cost is lower, technique is simple.
To achieve these goals, the utility model by the following technical solutions: a kind of earphone, the lid comprising external shell and match with described external shell; Contain phonation unit in the cavity that described external shell and described lid are formed, wherein, described phonation unit comprises moving-coil type phonation unit and piezo-electric ceramic sounding unit; Described moving-coil type phonation unit comprises vibrating diaphragm; Described lid is provided with phonate hole; Described piezo-electric ceramic sounding unit is arranged at the side of the close described phonate hole of described vibrating diaphragm; Described piezo-electric ceramic sounding unit is provided with the sound-guiding structure be connected with described phonate hole.
Improve as one, the space between described vibrating diaphragm and described lid phonate hole forms the passage of speaking of the operatic tunes before described moving-coil type phonation unit; Before described piezo-electric ceramic sounding unit is arranged at described moving-coil type phonation unit, the operatic tunes speaks on passage.
Improve as one, described piezo-electric ceramic sounding unit comprises piezoelectric ceramic piece and is incorporated into the sheet metal of described piezoelectric ceramic piece periphery; Described sound-guiding structure is positioned on described sheet metal.
Improve as one, described sound-guiding structure is the some through holes being arranged at described sheet metal surface.
Improve as one, described through hole is circular, square or oval.
Improve as one, described sound-guiding structure is the breach caved inward being arranged at described sheet metal edge; Described breach forms the sound penetrating hole that sound passes through between described piezo-electric ceramic sounding unit and described lid.
Improve as one, described piezo-electric ceramic sounding unit is connected by parallel way with described moving-coil type phonation unit, accepts the signal of telecommunication simultaneously.
Improve as one, described piezo-electric ceramic sounding unit is in parallel with described moving-coil type phonation unit, and by receiving the signal of telecommunication of different frequency range respectively in conjunction with frequency dividing circuit.
Improve as one, described piezo-electric ceramic sounding unit receives high frequency electrical signal; Described moving-coil type phonation unit receives low frequency electrical number.
Improve as one, described phonate hole is positioned at the end of described lid.
Earphone of the present utility model, its phonation unit is made up of moving-coil type phonation unit and piezo-electric ceramic sounding unit two parts, because piezo-electric ceramic sounding unit itself has outstanding high frequency performance, thus can supply the HFS of product, after high-frequency cut-off frequency is extended to 10K hertz; In addition, piezo-electric ceramic sounding unit has larger impedance, being in idle state, therefore can not causing interference to the low frequency performance of moving-coil type phonation unit when inputting low frequency signal; Moreover, with the scheme of dynamic iron loudspeaker and moving-coil loudspeaker combination in prior art, the technique of piezo-electric ceramic sounding unit and the requirement of technical elements all relatively low, its production cost is also low, after the acoustical quality effectively promoting earphone, can reduce costs, be easier to apply in this area.
Accompanying drawing explanation
Fig. 1 is the explosive view of the utility model Headphone structure;
Fig. 2 is the cutaway view of the utility model Headphone structure;
Fig. 3 is the utility model earphone moving ring type phonation unit schematic diagram in parallel with piezo-electric ceramic sounding unit;
Fig. 4 is the utility model earphone moving ring type phonation unit schematic diagram in parallel with piezo-electric ceramic sounding unit band frequency dividing circuit;
Reference numeral wherein comprises: 1, external shell, and 2, lid, 21, phonate hole, 3, moving-coil type phonation unit, 4, vibrating diaphragm, 5, piezo-electric ceramic sounding unit, 6, piezoelectric ceramic piece, 7, sheet metal, 71, through hole, 72, breach, 8, resistance, 9, electric capacity.
Embodiment
Below in conjunction with accompanying drawing, describe the utility model content in detail:
Embodiment:
Consult Fig. 1 and Fig. 2 jointly shown in, earphone of the present utility model comprises external shell 1 and lid 2, and together with external shell 1 cooperatively interacts with lid 2, the two is formed has the cavity of spatial accommodation, contains the phonation unit of earphone in this cavity.Earphone of the present utility model, its phonation unit comprises two parts, and a part is moving-coil type phonation unit 3, and another part is piezo-electric ceramic sounding unit 5.Why adopt this compound mode, because the high frequency performance of moving-coil loudspeaker is generally poor, and piezoelectric speaker has good high frequency performance, high-frequency cut-off frequency can be made to be extended, from the performance optimizing earphone products, the performance of High-frequency and low-frequency can be taken into account, the tonequality of improving product; In addition, piezoelectric speaker itself technically and technique requires relatively low, can reduce the production cost of earphone to a certain extent.
Specifically, moving-coil type phonation unit comprises magnetic circuit system and vibrational system, wherein, vibrational system comprises vibrating diaphragm 4 and fixing voice coil loudspeaker voice coil bonding with vibrating diaphragm 4, when voice coil loudspeaker voice coil receives the signal of external circuit, the motion of the reciprocating cutting magnetic line of force can be done under the effect of electromagnetic field, thus drive vibrating diaphragm 4 to vibrate, the end of lid 2 is provided with phonate hole 21, and vibrating diaphragm 4 vibrates the sound wave produced and is radiated to external environment condition by phonate hole 21.In the present embodiment, piezo-electric ceramic sounding unit 5 is placed in the side closer to phonate hole 21 of vibrating diaphragm 4, further, the passage of speaking of the operatic tunes before space between vibrating diaphragm 4 to lid phonate hole 21 is considered as moving-coil type phonation unit, so, piezo-electric ceramic sounding unit 5 be before being positioned at moving-coil type phonation unit 3 operatic tunes speak on passage, the design of this position relationship, the sound wave of piezo-electric ceramic sounding unit 5 can be made also directly can to enter people's ear by phonate hole 21, avoid the interference taking the design of other position relationships may bring high frequency performance.
From foregoing description, before moving-coil type phonation unit 3 operatic tunes passage of speaking on combine piezoelectric speaker phonation unit 5, in this case, need to arrange certain sound-guiding structure, the sound wave produced by moving-coil type phonation unit 3 imports phonate hole 21, and then being passed to the external world, in present embodiment, the sound-guiding structure be connected with phonate hole 21 is arranged on piezo-electric ceramic sounding unit 5.Specifically, piezo-electric ceramic sounding unit 5 comprises piezoelectric ceramic piece 6 and is incorporated into the sheet metal 7 of piezoelectric ceramic piece 6 periphery, and sound-guiding structure is arranged on sheet metal 7.
Consult shown in Fig. 1, the figure shows the sound-guiding structure on sheet metal 7, specifically can comprise following several:
One is on sheet metal 7, arrange some through holes 71, and herein, the concrete quantity of through hole 71 is not limit, and shape can be circular, oval or square, also can be other rule or irregular shapes, as long as can make sound wave through through-hole structure.
Two is arrange the breach 72 internally caved in the edge of sheet metal, this gap structure forms sound penetrating hole just between piezo-electric ceramic sounding unit 5 and the sidewall of lid 2, sound wave by this sound penetrating hole import in phonate hole 21, Fig. 2 illustrate be namely design this kind of sound-guiding structure time Headphone structure.
Three is comprise above-mentioned two kinds of sound-guiding structures simultaneously, namely on sheet metal 7, arranges through hole 71 and breach 72 simultaneously, allows sound wave is smooth and easy to be passed through.
It should be noted that, the exemplary illustration that sound-guiding structure shown in present embodiment is only used to the technical program is described and makes, during concrete enforcement, other sound-guiding structure can also be set on sheet metal 7, as long as sound wave can be made to import phonate hole 21 by piezo-electric ceramic sounding unit 5.
Consult Fig. 3 and Fig. 4 jointly shown in, in the technical program, earphone comprises two phonation units (3 and 5), during enforcement, can comprise following two kinds of operating states:
A. as shown in Figure 3, moving-coil type phonation unit 3 is in parallel with piezo-electric ceramic sounding unit 5, receives the signal of telecommunication simultaneously.In this working method, moving-coil type phonation unit 3 and piezo-electric ceramic sounding unit 5 receive high frequency, low frequency signal simultaneously, but because piezo-electric ceramic sounding unit 5 itself has larger impedance, when receiving low frequency signal, piezo-electric ceramic sounding unit 5 is in non operating state, like this, at low frequency place, moving-coil type phonation unit 3 is in running order, and its low frequency performance can not be subject to the impact of piezo-electric ceramic sounding unit.
B. as shown in Figure 4, moving-coil type phonation unit 3 is in parallel with piezo-electric ceramic sounding unit 5, and parallel circuits is also combined with frequency dividing circuit, shown in 8 is a resistance, this resistance 8 place allows low frequency electrical number to pass through, what be connected with resistance 8 is moving-coil type phonation unit 3, and in other words, what moving-coil type phonation unit 3 received is low frequency signal; Same, shown in 9 is an electric capacity, and this electric capacity 9 place allows high frequency electrical signal to pass through, in other words, what piezo-electric ceramic sounding unit 5 received is high frequency electrical signal, and such piezo-electric ceramic sounding unit 5 can supply HFS, and the performance at product low-and high-frequency place can be taken into account.
Comprehensive foregoing description, present embodiment contains six kinds of embodiments altogether:
One, piezo-electric ceramic sounding unit 5 is in parallel with moving-coil type phonation unit 3, and the two receives the signal of telecommunication simultaneously, and, sheet metal 7 is arranged through hole 71 as sound-guiding structure;
Two, piezo-electric ceramic sounding unit 5 is in parallel with moving-coil type phonation unit 3, and the two receives the signal of telecommunication of different frequency range respectively in conjunction with frequency dividing circuit, and, sheet metal 7 is arranged through hole 71 as sound-guiding structure;
Three, piezo-electric ceramic sounding unit 5 is in parallel with moving-coil type phonation unit 3, and the two receives the signal of telecommunication simultaneously, and, sheet metal 7 is arranged breach 72 as sound-guiding structure;
Four, piezo-electric ceramic sounding unit 5 is in parallel with moving-coil type phonation unit 3, and the two receives the signal of telecommunication of different frequency range respectively in conjunction with frequency dividing circuit, and, sheet metal 7 is arranged breach 72 as sound-guiding structure;
Five, piezo-electric ceramic sounding unit 5 is in parallel with moving-coil type phonation unit 3, and the two receives the signal of telecommunication simultaneously, and, sheet metal 7 is arranged simultaneously through hole 71 and breach 72 as sound-guiding structure;
Six, piezo-electric ceramic sounding unit 5 is in parallel with moving-coil type phonation unit 3, and the two receives the signal of telecommunication of different frequency range respectively in conjunction with frequency dividing circuit, and, sheet metal 7 is arranged simultaneously through hole 71 and breach 72 as sound-guiding structure;
These are only the utility model case study on implementation, be not limited to the utility model, as long as those of ordinary skill in the art modify or change according to the equivalence that the utility model institute disclosure is done, all should include in the protection range recorded in claims.
Claims (10)
1. an earphone, the lid comprising external shell and match with described external shell; Contain phonation unit in the cavity that described external shell and described lid are formed, it is characterized in that: described phonation unit comprises moving-coil type phonation unit and piezo-electric ceramic sounding unit; Described moving-coil type phonation unit comprises vibrating diaphragm; Described lid is provided with phonate hole; Described piezo-electric ceramic sounding unit is arranged at the side of the close described phonate hole of described vibrating diaphragm; Described piezo-electric ceramic sounding unit is provided with the sound-guiding structure be connected with described phonate hole.
2. earphone according to claim 1, is characterized in that: the space between described vibrating diaphragm and described lid phonate hole forms the passage of speaking of the operatic tunes before described moving-coil type phonation unit; Before described piezo-electric ceramic sounding unit is arranged at described moving-coil type phonation unit, the operatic tunes speaks on passage.
3. earphone according to claim 1, is characterized in that: described piezo-electric ceramic sounding unit comprises piezoelectric ceramic piece and is incorporated into the sheet metal of described piezoelectric ceramic piece periphery; Described sound-guiding structure is positioned on described sheet metal.
4. earphone according to claim 3, is characterized in that: described sound-guiding structure is the some through holes being arranged at described sheet metal surface.
5. earphone according to claim 4, is characterized in that: described through hole is for circular, square or oval.
6. earphone according to claim 3, is characterized in that: described sound-guiding structure is the breach caved inward being arranged at described sheet metal edge; Described breach forms the sound penetrating hole that sound passes through between described piezo-electric ceramic sounding unit and lid.
7. earphone according to claim 1, is characterized in that: described piezo-electric ceramic sounding unit is connected by parallel way with described moving-coil type phonation unit, accepts the signal of telecommunication simultaneously.
8. earphone according to claim 1, is characterized in that: described piezo-electric ceramic sounding unit is in parallel with described moving-coil type phonation unit, and by receiving the signal of telecommunication of different frequency range respectively in conjunction with frequency dividing circuit.
9. earphone according to claim 8, is characterized in that: described piezo-electric ceramic sounding unit receives high frequency electrical signal; Described moving-coil type phonation unit receives low frequency electrical number.
10. earphone according to claim 1, is characterized in that: described phonate hole is positioned at the end of described lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520797523.3U CN205039985U (en) | 2015-10-15 | 2015-10-15 | Earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520797523.3U CN205039985U (en) | 2015-10-15 | 2015-10-15 | Earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205039985U true CN205039985U (en) | 2016-02-17 |
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ID=55298852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520797523.3U Active CN205039985U (en) | 2015-10-15 | 2015-10-15 | Earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205039985U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106231462A (en) * | 2016-08-08 | 2016-12-14 | 珠海声浪科技有限公司 | A kind of earphone |
| CN112399294A (en) * | 2019-08-16 | 2021-02-23 | 华一声学股份有限公司 | Earphone sound production module |
-
2015
- 2015-10-15 CN CN201520797523.3U patent/CN205039985U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106231462A (en) * | 2016-08-08 | 2016-12-14 | 珠海声浪科技有限公司 | A kind of earphone |
| CN112399294A (en) * | 2019-08-16 | 2021-02-23 | 华一声学股份有限公司 | Earphone sound production module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |