CN216057485U - Loudspeaker and electronic equipment - Google Patents
Loudspeaker and electronic equipment Download PDFInfo
- Publication number
- CN216057485U CN216057485U CN202122197209.XU CN202122197209U CN216057485U CN 216057485 U CN216057485 U CN 216057485U CN 202122197209 U CN202122197209 U CN 202122197209U CN 216057485 U CN216057485 U CN 216057485U
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- loudspeaker
- magnetic
- coil
- layer
- shielding
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Abstract
The utility model relates to the field of electronic equipment, and discloses a loudspeaker and electronic equipment, wherein the loudspeaker comprises: the magnetic cover and the basin frame are matched to form an accommodating cavity; the shielding layer is arranged on one side, away from the accommodating cavity, of the magnetic cover and used for shielding a magnetic field outside the accommodating cavity. Be formed with through magnetism cover and basin frame cooperation and hold the chamber, hold the intracavity and place the functional device that makes loudspeaker work, can produce the planar alternating magnetic field of a perpendicular mainboard along with the change of electric current when making the mainboard work of the functional device of loudspeaker work, magnetic field can pass the coil of loudspeaker perpendicularly this moment, let the coil produce parasitic current and lead to loudspeaker vibration, in order to reduce the electric current sound that leads to because loudspeaker vibration, then deviate from to hold chamber one side at the magnetism cover and set up the shielding layer, shielding thickness and the area through shielding layer increase loudspeaker coil, reduce the magnetic flux that gets into the coil, thereby effectively shield the magnetic field that the mainboard is holding the outside production of chamber.
Description
Technical Field
The present invention relates to the field of electronic devices, and in particular, to a speaker and an electronic device.
Background
Because a parasitic magnetic field generated by current change in the working process of a main board in a loudspeaker of the electronic equipment can penetrate through a loudspeaker coil, according to the Faraday's law of electromagnetic induction, the loudspeaker coil can generate current in an alternating magnetic field to cause the loudspeaker to vibrate and generate current sound; the current sound is a big difficulty for disturbing the using effect of the loudspeaker at present.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a loudspeaker and electronic equipment, which are used for solving the problem of current sound of the loudspeaker.
In order to achieve the purpose, the utility model provides the following technical scheme:
in a first aspect, the present invention provides a horn comprising: the magnetic cover and the basin frame are matched to form an accommodating cavity;
the shielding layer is arranged on one side, away from the accommodating cavity, of the magnetic cover and used for shielding a magnetic field outside the accommodating cavity.
Be formed with through magnetism cover and basin frame cooperation and hold the chamber, hold the intracavity and place the functional device that makes loudspeaker work, can produce the planar alternating magnetic field of a perpendicular mainboard along with the change of electric current when making the mainboard work of the functional device of loudspeaker work, magnetic field can pass the coil of loudspeaker perpendicularly this moment, let the coil produce parasitic current and lead to loudspeaker vibration, in order to reduce the electric current sound that leads to because loudspeaker vibration, then deviate from to hold chamber one side at the magnetism cover and set up the shielding layer, shielding thickness and the area through shielding layer increase loudspeaker coil, reduce the magnetic flux that gets into the coil, thereby effectively shield the magnetic field that the mainboard is holding the outside production of chamber.
Optionally, the shielding layer is a metal layer.
Optionally, the material of the metal layer comprises one or more of iron, cobalt, and nickel.
Optionally, the shielding layer is connected with the magnetic cover through a connecting layer.
Optionally, the connecting layer comprises an adhesive layer.
Optionally, the connection layer comprises a solder layer.
Optionally, the shape of the shielding layer matches the shape of the magnetic shield.
Optionally, the shape of the contact surface of the shielding layer and the magnetic cover is circular.
Optionally, the shape of the contact surface of the shielding layer and the magnetic shield is a circular ring.
In a second aspect, the present invention provides an electronic device comprising: the horn of any one of the first aspect.
Drawings
Fig. 1 is a sectional view of a horn according to an embodiment of the present invention;
fig. 2 is an exploded view of a horn according to an embodiment of the present invention.
Icon: 1-a dome; 2-folding a ring; 3-a copper ring; 4-a voice coil; 5-a magnetic conductive plate; 6-a basin stand; 7-a lead; 8-a speaker net; 9-a magnet; 10-a magnetic shield; 11-shielding layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 2, an embodiment of the present invention provides a horn, including: the magnetic cover 10 and the basin stand 6 are matched to form an accommodating cavity;
and the shielding layer 11 is arranged on one side of the magnetic cover 10, which faces away from the accommodating cavity, and is used for shielding a magnetic field outside the accommodating cavity.
It should be noted that, be formed with through the cooperation of magnetic shield 10 and basin frame 6 and hold the chamber, hold the intracavity and place the functional device that makes loudspeaker work, can produce the planar alternating magnetic field of a perpendicular mainboard along with the change of electric current when making the mainboard work of the functional device of loudspeaker work, magnetic field can pass the coil of loudspeaker perpendicularly this moment, let the coil produce parasitic current and lead to loudspeaker vibration, in order to reduce the current sound that leads to because loudspeaker vibration, then deviate from at magnetic shield 10 and hold chamber one side and set up shielding layer 11, the shielding thickness and the area of loudspeaker coil increase through shielding layer 11, reduce the magnetic flux that gets into the coil, thereby effectively shield the mainboard and holding the outside magnetic field that produces in chamber.
Further, the shielding layer 11 is a metal layer. Specifically, the material of the metal layer includes one or more of iron, cobalt, and nickel. Of course, the specific material of the shielding layer 11 may be any material capable of shielding the magnetic induction lines.
In order to mount the shield layer 11 and the magnetic shield 10 together, the shield layer 11 is connected to the magnetic shield 10 by a connection layer; the specific connection mode can be various:
in the first mode, the connecting layer comprises an adhesive layer. I.e. the shield 11 and the magnetic shield 10 are connected together by means of an adhesive layer, which is more convenient.
In a second mode, the connection layer includes a solder layer. I.e. spot welding, to connect the shield layer 11 and the magnetic shield 10 together.
In one embodiment, the shape of the shield 11 matches the shape of the magnetic shield 10. The shielding layer 11 is used for increasing the intensity of the magnetic induction line shielded by the magnetic cover 10, and because the loudspeaker is generally installed in the electronic equipment such as a mobile phone and a tablet, because the installation space is limited, the shape and the size of the shielding layer 11 are selected according to the installation space, the shielding thickness and the shielding area of the loudspeaker coil can be ensured to be increased, and the volume of the electronic equipment such as the mobile phone and the tablet can not be increased on the premise of reducing the magnetic flux entering the coil.
For example, the contact surface of the shielding layer 11 and the magnetic cover 10 is circular; the contact surface of the shielding layer 11 and the magnetic cover 10 is circular or rectangular.
Referring to fig. 2, fig. 2 is an exploded view of a horn according to an embodiment of the present invention, which includes, from top to bottom: the loudspeaker comprises a dome 1, a corrugated rim 2, a copper ring 3, a voice coil 4, a magnetic conduction plate 5, a basin frame 6, a lead 7, a horn mesh 8, a magnet 9, a magnetic shield 10 and a shielding layer 11.
In a second aspect, an embodiment of the present invention provides an electronic device, including: the horn of any one of the first aspect.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A horn, comprising: the magnetic cover and the basin frame are matched to form an accommodating cavity;
the shielding layer is arranged on one side, away from the accommodating cavity, of the magnetic cover and is used for shielding a magnetic field outside the accommodating cavity;
the shape of the shielding layer is matched with that of the magnetic cover.
2. The horn of claim 1, wherein the shielding layer is a metal layer.
3. The horn of claim 1, wherein the shield layer is connected to the magnetic shield by a connecting layer.
4. The horn of claim 3, wherein the joining layer comprises an adhesive layer.
5. The horn of claim 3, wherein the joining layer comprises a solder layer.
6. The horn of claim 1, wherein the shield layer is circular in shape at the interface with the magnetic shield.
7. The horn of claim 1, wherein the contact surface of the shielding layer and the magnetic shield is in the shape of a circular ring.
8. An electronic device, comprising: the horn of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122197209.XU CN216057485U (en) | 2021-09-10 | 2021-09-10 | Loudspeaker and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122197209.XU CN216057485U (en) | 2021-09-10 | 2021-09-10 | Loudspeaker and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216057485U true CN216057485U (en) | 2022-03-15 |
Family
ID=80598222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122197209.XU Active CN216057485U (en) | 2021-09-10 | 2021-09-10 | Loudspeaker and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216057485U (en) |
-
2021
- 2021-09-10 CN CN202122197209.XU patent/CN216057485U/en active Active
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