CN204993838U - Outer magnetic -type loudspeaker of cell -phone demagnetization - Google Patents
Outer magnetic -type loudspeaker of cell -phone demagnetization Download PDFInfo
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- CN204993838U CN204993838U CN201520776838.XU CN201520776838U CN204993838U CN 204993838 U CN204993838 U CN 204993838U CN 201520776838 U CN201520776838 U CN 201520776838U CN 204993838 U CN204993838 U CN 204993838U
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Abstract
The utility model discloses an outer magnetic -type loudspeaker of cell -phone demagnetization, its characterized in that: be provided with annular induction coil in the upper plenum, annular induction coil's periphery radius is equal with the inner wall radius of upper plenum, the cavity is provided with annular magnet, annular magnetic conductive plate, magnetic pole piece, T shape iron plate and annular vibrator coil down, annular magnet, annular magnetic conductive plate and magnetic pole piece are fixed by T shape iron plate, the bottom card of T shape iron plate is located down the opening part of cavity and is sealed the opening. The beneficial effects of the utility model are that: the utility model provides an outer magnetic -type structure, the volume is big, compatible good, can make the user who wears audiphone equipment when using the cell -phone, can hear the outer magnetic -type loudspeaker of taking the demagnetization function of clear sound.
Description
Technical field
The utility model relates to loudspeaker technical field, refers in particular to a kind of external magnetic type loudspeaker of mobile phone demagnetization.
Background technology
Along with the development of smart mobile phone and mobile Internet, the loudspeaker that smart mobile phone uses and the consumption of receiver increasing.And the radio wave that smart mobile phone sends can form electromagnetic field around antenna, this can make the people of hearing aids hear ear-piercing buzz.Traditional loudspeaker and earphone are all one block of magnet and the diaphragm structure with a wire bushing.When coil is by electroacoustic signal, the magnetic field changed, this magnetic field, with magnet effect, makes coil drive vibrating diaphragm to send the sound of our needs.But also the magnetic field of coil can interfere with the miscellaneous equipments such as hearing aids just, make miscellaneous equipment work abnormal or lost efficacy.Therefore the user of hearing aids is when using mobile phone, can there is compatible bad problem, can not hear clearly sound.
In addition, manufacture field at present at loudspeaker, general employing internal magnetization horn structure, its magnetic flux leakage is large, and volume is too small, and the volume of magnet ring and voice coil loudspeaker voice coil is excessive, and magnet ring and voice coil loudspeaker voice coil are installed on pedestal, be unfavorable for the application of some precise electronic products, and production cost is higher.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, provides a kind of external magnetic type structure, gives great volume, compatible good, the user of hearing aids equipment can be made when using mobile phone, the external magnetic type loudspeaker of the band demagnetization function knowing sound can be heard.
The technical solution adopted in the utility model is: a kind of external magnetic type loudspeaker of mobile phone demagnetization, comprise basin shape support, upper plenum and lower cavity is formed in described basin shape support, upper plenum and the coaxial heart of lower cavity, the radius of upper plenum is greater than the radius of lower cavity, upper plenum is connected with lower cavity, the bottom of described lower cavity is provided with opening, toroidal inductor is provided with in described upper plenum, the peripheral radius of toroidal inductor is equal with the inwall radius of upper plenum, described lower cavity is provided with annular magnet, ring magneto conducting piece, pole piece, T-shaped iron block and annular vibration coil, described annular magnet, ring magneto conducting piece, pole piece, T-shaped iron block and the design of annular vibration coil concentric, the radius of described annular vibration coil is greater than annular magnet respectively, ring magneto conducting piece, pole piece, the radius of T-shaped iron block, the peripheral radius of annular vibration coil is identical with the inwall radius of lower cavity, described annular magnet is identical with the radius of ring magneto conducting piece, the radius of described annular magnet is greater than the radius of pole piece, described annular magnet, ring magneto conducting piece and pole piece are fixed by T-shaped iron block, the bottom of described T-shaped iron block be arranged in lower cavity opening part and by closure of openings.
Further, the sense of current passed through in vibrator coil is contrary with the sense of current passed through in induction coil.
Further, described vibrator coil is in parallel with induction coil.
Further, described induction coil is provided with protecting cover, the peripheral radius of protecting cover is identical with the inwall radius of upper plenum.
Further, the upper end of described upper plenum is covered with Air Filter.
Further, described upper plenum outer surface and lower cavity outer surface intersection are provided with groove, described groove are coated with tuning screen cloth.
The beneficial effects of the utility model are: (one) magnet and pole piece are arranged on basin shape support and by T-shaped ferropexy, its scientific structure design is simple, and volume is little, adopt external magnetic type structure, give great volume, can be used for the application of some precise electronic products, and production cost is low; (2) by arranging vibrator coil and induction coil, utilizing two contrary coils in direction that are energized to produce contrary magnetic field, thus effectively eliminating the magnetic field exposure of primary coil, achieving the compatibility of Mobile phone horn and hearing aids.
Accompanying drawing illustrates:
Fig. 1 is cutaway view of the present utility model.
Embodiment:
With reference to shown in Fig. 1, a kind of external magnetic type loudspeaker of mobile phone demagnetization, comprise basin shape support 16, upper plenum 11 and lower cavity 12 is formed in basin shape support 16, upper plenum 11 and the coaxial heart of lower cavity 12, the radius of upper plenum 11 is greater than the radius of lower cavity 12, upper plenum 11 is connected with lower cavity 12, the bottom of described lower cavity 12 is provided with opening, toroidal inductor 10 is provided with in described upper plenum 11, the peripheral radius of toroidal inductor 10 is equal with the inwall radius of upper plenum 11, described lower cavity 12 is provided with annular magnet 1, ring magneto conducting piece 2, pole piece 4, T-shaped iron block 3 and annular vibration coil 5, described annular magnet 1, ring magneto conducting piece 2, pole piece 4, T-shaped iron block 3 and the design of annular vibration coil 5 concentric, the radius of described annular vibration coil 5 is greater than annular magnet 1 respectively, ring magneto conducting piece 2, pole piece 4, the radius of T-shaped iron block 3, the peripheral radius of annular vibration coil 5 is identical with the inwall radius of lower cavity 12, described annular magnet 1 is identical with the radius of ring magneto conducting piece 2, the radius of described annular magnet 1 is greater than the radius of pole piece 4, described annular magnet 1, ring magneto conducting piece 2 and pole piece 4 are fixed by T-shaped iron block 3, the bottom of described T-shaped iron block 3 be arranged in lower cavity 12 opening part and by closure of openings.
Described annular magnet 1, ring magneto conducting piece 2, pole piece 4, T-shaped iron block 3 and annular vibration coil 5 concentric design, annular magnet 1, ring magneto conducting piece 2 and pole piece 4 are fixed by T-shaped iron block 3, its scientific structure design is simple, volume is little, adopt external magnetic type structure, give great volume, can be used for the application of some precise electronic products, and production cost is low.
The sense of current passed through in vibrator coil 5 is contrary with the sense of current passed through in induction coil 10.Vibrator coil 5 is in parallel with induction coil 10, vibrator coil 5 is controlled by control circuit with the wiring of induction coil 10, when by reverse current, induction coil 10 can produce a magnetic field of following vibrator coil 5 direction contrary, for eliminating the magnetic field exposure of vibrator coil 5, reduce Mobile phone horn to the electromagnetic interference of hearing aids.
The utility model by vibrator coil 5 by the electric current contrary with induction coil 10, thus produce and induction coil 10 magnetic field on the contrary, the electromagnetic interference of Mobile phone horn to hearing aid apparatus is eliminated with this, mobile phone products is allowed not need to revise sonic profile, when keeping good sounding effect, save the compatible authentication debugging time of mobile phone and hearing aids.
Described induction coil 10 is provided with protecting cover 7, and the peripheral radius of protecting cover 7 is identical with the inwall radius of upper plenum 11.
The upper end of described upper plenum 11 is covered with Air Filter 8.
Described upper plenum 11 outer surface and lower cavity 12 outer surface intersection are provided with groove 15, and described groove 15 is coated with tuning screen cloth.
Above-described embodiment is only display and describes general principle of the present utility model, principal character and advantage.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.
Claims (6)
1. the external magnetic type loudspeaker of a mobile phone demagnetization, comprise basin shape support (16), upper plenum (11) and lower cavity (12) is formed in described basin shape support (16), upper plenum (11) and lower cavity (12) the coaxial heart, the radius of upper plenum (11) is greater than the radius of lower cavity (12), upper plenum (11) is connected with lower cavity (12), the bottom of described lower cavity (12) is provided with opening, it is characterized in that: in described upper plenum (11), be provided with toroidal inductor (10), the peripheral radius of toroidal inductor (10) is equal with the inwall radius of upper plenum (11), described lower cavity (12) is provided with annular magnet (1), ring magneto conducting piece (2), pole piece (4), T-shaped iron block (3) and annular vibration coil (5), described annular magnet (1), ring magneto conducting piece (2), pole piece (4), T-shaped iron block (3) and the design of annular vibration coil (5) concentric, the radius of described annular vibration coil (5) is greater than annular magnet (1) respectively, ring magneto conducting piece (2), pole piece (4), the radius of T-shaped iron block (3), the peripheral radius of annular vibration coil (5) is identical with the inwall radius of lower cavity (12), described annular magnet (1) is identical with the radius of ring magneto conducting piece (2), the radius of described annular magnet (1) is greater than the radius of pole piece (4), described annular magnet (1), ring magneto conducting piece (2) and pole piece (4) are fixed by T-shaped iron block (3), the bottom of described T-shaped iron block (3) be arranged in lower cavity (12) opening part and by closure of openings.
2. the external magnetic type loudspeaker of a kind of mobile phone demagnetization according to claim 1, is characterized in that: the sense of current passed through in vibrator coil (5) is contrary with the sense of current passed through in induction coil (10).
3. the external magnetic type loudspeaker of a kind of mobile phone demagnetization according to claim 1, is characterized in that: described vibrator coil (5) is in parallel with induction coil (10).
4. the external magnetic type loudspeaker of a kind of mobile phone demagnetization according to claim 1, it is characterized in that: described induction coil (10) is provided with protecting cover (7), the peripheral radius of protecting cover (7) is identical with the inwall radius of upper plenum (11).
5. the external magnetic type loudspeaker of a kind of mobile phone demagnetization according to claim 1, is characterized in that: the upper end of described upper plenum (11) is covered with Air Filter (8).
6. the external magnetic type loudspeaker of a kind of mobile phone demagnetization according to claim 1, it is characterized in that: described upper plenum (11) outer surface and lower cavity (12) outer surface intersection are provided with groove (15), and (15) are coated with tuning screen cloth to described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520776838.XU CN204993838U (en) | 2015-09-30 | 2015-09-30 | Outer magnetic -type loudspeaker of cell -phone demagnetization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520776838.XU CN204993838U (en) | 2015-09-30 | 2015-09-30 | Outer magnetic -type loudspeaker of cell -phone demagnetization |
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| Publication Number | Publication Date |
|---|---|
| CN204993838U true CN204993838U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520776838.XU Active CN204993838U (en) | 2015-09-30 | 2015-09-30 | Outer magnetic -type loudspeaker of cell -phone demagnetization |
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| CN (1) | CN204993838U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105979420A (en) * | 2016-06-22 | 2016-09-28 | 青岛歌尔声学科技有限公司 | Moving-coil type earphone and method for reducing electromagnetic radiation of the same |
| CN109525924A (en) * | 2017-09-19 | 2019-03-26 | 惠州超声音响有限公司 | Loudspeaker with open induction coil |
-
2015
- 2015-09-30 CN CN201520776838.XU patent/CN204993838U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105979420A (en) * | 2016-06-22 | 2016-09-28 | 青岛歌尔声学科技有限公司 | Moving-coil type earphone and method for reducing electromagnetic radiation of the same |
| CN109525924A (en) * | 2017-09-19 | 2019-03-26 | 惠州超声音响有限公司 | Loudspeaker with open induction coil |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |