CN220554107U - Loudspeaker - Google Patents
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- CN220554107U CN220554107U CN202420075828.2U CN202420075828U CN220554107U CN 220554107 U CN220554107 U CN 220554107U CN 202420075828 U CN202420075828 U CN 202420075828U CN 220554107 U CN220554107 U CN 220554107U
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Abstract
The utility model provides a loudspeaker, which comprises a magnetic cover, wherein a magnetic circuit system and a vibration system are arranged on one side of the magnetic cover, a second magnetic steel and a second basin frame are arranged on the other side of the magnetic cover, the second magnetic steel is fixed on the magnetic cover, a second voice coil is arranged on the outer side of the second magnetic steel, a vibration plate is fixed on the second basin frame, a third magnetic steel is fixed on the vibration plate, and the magnetic poles of the second magnetic steel and the third magnetic steel are opposite. Compared with the prior art, the magnetic shield has the advantages that the magnetic shield not only shares part parts, is lower in cost, reduces the containing space of products, but also avoids the rubbing collision between the vibrating plate and the second voice coil and the second magnetic steel under the influence of repulsive force of the second magnetic steel and the third magnetic steel, and effectively reduces the thickness between the whole vibrating plate and the magnetic shield, so that the whole size is reduced, the concentricity of the second magnetic steel and the third magnetic steel is not required, the positioning difficulty can be reduced, and the whole assembly is simpler.
Description
Technical Field
The utility model relates to the field of electronic products, in particular to a loudspeaker.
Background
Electroacoustic components for cell phones, tablets and other applications are typically composed of a loudspeaker for sound production and an exciter for vibration; the loudspeaker and the exciter belong to different elements, occupy different spaces simultaneously, difficulty in assembling simultaneously, in the existing loudspeaker combining two into one, a vibration system and a magnetic circuit are arranged on the exciter, the magnetic circuit comprises magnetic steel and a pole piece which are arranged on a magnetic shield, the vibration system comprises a vibration plate and a voice coil which are also arranged on the magnetic shield through a basin frame, the voice coil and the magnetic steel are matched with each other, high concentricity is guaranteed, accurate amplitude is calculated to prevent friction, and therefore the whole exciter is high in assembly precision and concentricity, and positioning difficulty is high.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a loudspeaker.
The aim of the utility model is achieved by the following technical measures: a loudspeaker, characterized by: the magnetic shield comprises a magnetic shield, one side of the magnetic shield is provided with a magnetic circuit system and a vibration system, the other side of the magnetic shield is provided with second magnetic steel and a second basin frame, the second magnetic steel is fixed on the magnetic shield, the outer side of the second magnetic steel is provided with a second voice coil, a vibration plate is fixed on the second basin frame, a third magnetic steel is fixed on the vibration plate, and the magnetic poles of the second magnetic steel and the third magnetic steel are opposite.
As a preferable scheme, the second voice coil is positioned on the outer side of the second magnetic steel and fixedly arranged on the magnetic cover.
As a preferable scheme, the second basin frame is fixed on the magnetic shield, the vibrating plate is fixedly adhered to the second basin frame, and the third magnetic steel is positioned on one side of the vibrating plate, which is close to the magnetic shield.
As a preferable scheme, the projection of the third magnetic steel in the vertical direction is partially or completely overlapped with the projection of the second magnetic steel and the second voice coil in the vertical direction.
As a preferable scheme, the magnetic cover is provided with a groove, and one end of the second magnetic steel is positioned in the groove and fixedly connected with the magnetic cover.
As a preferable scheme, a second pole piece is arranged on one side of the second magnetic steel, which is far away from the magnetic cover.
As a preferable scheme, one side of the third magnetic steel far away from the vibrating plate is fixedly connected with a third pole piece.
As a preferable scheme, the magnetic circuit system comprises first magnetic steel, the first magnetic steel is fixed on the magnetic shield, the first magnetic steel and the second magnetic steel are respectively positioned on two sides of the magnetic shield, and the magnetic pole directions of the first magnetic steel and the second magnetic steel are opposite.
As a preferable scheme, the magnetic cover is also fixedly connected with a first basin frame for installing a vibration system, and the vibration system comprises a vibrating diaphragm fixed on the first basin frame and a first voice coil installed on the vibrating diaphragm.
As a preferable scheme, one end of the first magnetic steel, which is far away from the magnetic cover, is fixedly connected with a first pole piece.
Due to the adoption of the technical scheme, compared with the prior art, the utility model has the advantages that: compared with the prior art, the magnetic shield has the advantages that the magnetic shield not only shares part parts, is lower in cost, reduces the containing space of products, but also avoids the rubbing collision between the vibrating plate and the second voice coil and the second magnetic steel under the influence of repulsive force of the second magnetic steel and the third magnetic steel, and effectively reduces the thickness between the whole vibrating plate and the magnetic shield, so that the whole size is reduced, the concentricity of the second magnetic steel and the third magnetic steel is not required, the positioning difficulty can be reduced, and the whole assembly is simpler.
The utility model is further described below with reference to the drawings and the detailed description.
Drawings
Fig. 1 is a schematic cross-sectional view of a loudspeaker according to the present utility model.
Fig. 2 is a schematic diagram of an assembly structure of a speaker according to the present utility model.
Fig. 3 is a schematic diagram of an exploded structure of a speaker according to the present utility model.
Description of the embodiments
The following description of the embodiments of the present utility model 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 of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples: as shown in fig. 1-3, a loudspeaker comprises a magnetic cover 1, wherein a magnetic circuit system and a vibration system are arranged on one side of the magnetic cover 1, a second magnetic steel 8 and a second basin frame 7 are arranged on the other side of the magnetic cover 1, the second magnetic steel 8 is fixed on the magnetic cover 1, a second voice coil 10 is arranged on the outer side of the second magnetic steel 8, a vibration plate is fixed on the second basin frame 7, a third magnetic steel 11 is fixed on the vibration plate, and the magnetic poles of the second magnetic steel 8 and the third magnetic steel 11 are opposite.
In this embodiment, the magnetic circuit system includes a first magnetic steel 2, where the first magnetic steel 2 is fixed on the magnetic cover 1, and in this embodiment, the second magnetic steel 8 is also fixed on the magnetic cover 1 by bonding, and in this embodiment, the first magnetic steel 2 is fixed by bonding. The first magnet steel 2 and the second magnet steel 8 are located the both sides of magnetic shield 1 respectively, and the magnetic pole direction of first magnet steel 2 and second magnet steel 8 is opposite, in this embodiment, as shown in fig. 1, the one end that first magnet steel 2 is close to magnetic shield 1 is the S pole, and the other end is the N pole, and the one end that second magnet steel 8 is close to magnetic shield 1 is the S pole, and the other end is the N pole, and the one end magnetic pole that first magnet steel 2 and second magnet steel 8 are close to each other is the same, and the one end that also can be close to each other is the N pole, and the one end that is kept away from each other is the S pole, can play the effect of mutual reinforcing. After the second magnetic steel 8 is assembled, the magnetic field intensity is higher than that of a magnetic circuit system of a loudspeaker which is independently used, and the sensitivity of the loudspeaker is higher. After the first magnetic steel 2 is assembled, the magnetic field intensity is larger than that of a magnetic circuit system of a vibrator, and the vibration acceleration is larger.
In this embodiment, the first magnet steel 2 is kept away from the one end of magnetic shield 1 and is still fixedly connected with first pole piece 3, still fixedly connected with first basin frame 4 on the magnetic shield 1, and first basin frame 4 is used for installing vibration system, and in this embodiment, vibration system is including fixing vibrating diaphragm 6 on first basin frame 4 and install first voice coil 5 on vibrating diaphragm 6, and vibration system makes reciprocating motion in magnetic circuit after receiving the signal of telecommunication of acoustic signal conversion and sends sound.
In this embodiment, a groove 13 is disposed on the magnetic cover 1, one end of the second magnetic steel 8 is located in the groove 13 and is fixedly connected with the magnetic cover 1, and a second pole piece 9 is installed on one side of the second magnetic steel 8 away from the magnetic cover 1. The second voice coil 10 is located the outside of second magnet steel 8 and fixed mounting on magnet cover 1, and one side that second voice coil 10 kept away from magnet cover 1 and one side that second pole piece 9 kept away from second magnet steel 8 are located the coplanar, both can guarantee to produce the biggest effect, can not produce the collision with it when second magnet steel 8 moves again. In this embodiment, the center line of the second magnetic steel 8 is overlapped with the center line of the magnetic shield 1, that is, the magnetic shield 1, the second magnetic steel 8, the second pole piece 9 and the voice coil are all concentrically arranged. During assembly, the second magnetic steel 8 is directly and fixedly arranged in the groove 13, then the voice coil is arranged at the periphery, the second pole piece 9 is fixed, no special positioning tool is needed for positioning, and the operation is simple.
The second basin frame 7 is fixed on the magnetic shield 1, the vibrating plate 14 is fixedly bonded on the second basin frame 7, the vibrating plate 14 is in a flat plate shape, the third magnetic steel 11 is located on one side, close to the magnetic shield 1, of the vibrating plate 14, one side, far away from the vibrating plate 14, of the third magnetic steel 11 is fixedly connected with the third pole piece 12, projection of the third magnetic steel 11 in the vertical direction is partially or completely overlapped with projection of the second magnetic steel 8 and the second voice coil 10 in the vertical direction, repulsive force between the second magnetic steel 8 and the third magnetic steel 11 can be guaranteed, and the third magnetic steel 11 vibrates under the influence of lorentz force of the second voice coil 10. In this embodiment, the outer circumference of the second voice coil 10 is equal to the outer circumference of the third magnetic steel 11 in size, that is, the projection of the third magnetic steel 11 in the vertical direction is overlapped with the projections of the second magnetic steel 8 and the second voice coil 10 in the vertical direction, and the projection of the area surrounded by the second voice coil 10 can be covered completely by the area increase of the third magnetic steel 11, so that the concentricity of the second magnetic steel 8 and the third magnetic steel 11 is not required, and as long as the repulsive force exists between the second magnetic steel 8 and the third magnetic steel 11, the third magnetic steel 11 can vibrate under lorentz force generated after the second voice coil 10 is electrified, so that the positioning difficulty can be reduced, and the whole assembly is simpler.
As shown in fig. 1, the magnetic poles of the second magnetic steel 8 and the third magnetic steel 11 are opposite, that is, the side of the third magnetic steel 11 close to the second magnetic steel 8 is an N pole, and the side close to the vibration plate 14 is an S pole. In this way, the second magnetic steel 8 and the third magnetic steel 11 form a mutually exclusive environment, so that the voice coil and the second pole piece 9 cannot be rubbed and bumped when the vibration plate 14 vibrates, the thickness between the whole vibration plate 14 and the magnetic shield 1 can be effectively reduced, and the whole volume is reduced. The electric signal is attracted or repelled by the lorentz force formed by the second voice coil 10 and the magnetic pole formed by combining the third magnetic steel 11, so as to drive the elastic vibration plate 14 to vibrate.
Claims (10)
1. A loudspeaker, characterized by: the magnetic shield comprises a magnetic shield, one side of the magnetic shield is provided with a magnetic circuit system and a vibration system, the other side of the magnetic shield is provided with second magnetic steel and a second basin frame, the second magnetic steel is fixed on the magnetic shield, the outer side of the second magnetic steel is provided with a second voice coil, a vibration plate is fixed on the second basin frame, a third magnetic steel is fixed on the vibration plate, and the magnetic poles of the second magnetic steel and the third magnetic steel are opposite.
2. A loudspeaker according to claim 1, wherein: the second voice coil is positioned on the outer side of the second magnetic steel and fixedly installed on the magnetic cover.
3. A loudspeaker according to claim 1, wherein: the second basin frame is fixed on the magnetic shield, the vibrating plate is fixedly adhered to the second basin frame, and the third magnetic steel is positioned on one side of the vibrating plate, which is close to the magnetic shield.
4. A loudspeaker according to claim 3, wherein: and the projection of the third magnetic steel in the vertical direction is partially or completely overlapped with the projection of the second magnetic steel and the second voice coil in the vertical direction.
5. A loudspeaker according to claim 1, wherein: the magnetic shield is provided with a groove, and one end of the second magnetic steel is positioned in the groove and fixedly connected with the magnetic shield.
6. A loudspeaker according to claim 1, wherein: and a second pole piece is arranged on one side of the second magnetic steel, which is far away from the magnetic cover.
7. A loudspeaker according to claim 1, wherein: and one side of the third magnetic steel, which is far away from the vibrating plate, is fixedly connected with a third pole piece.
8. A loudspeaker according to any one of claims 1 to 7, wherein: the magnetic circuit system comprises first magnetic steel, the first magnetic steel is fixed on the magnetic shield, the first magnetic steel and the second magnetic steel are respectively located on two sides of the magnetic shield, and the magnetic pole directions of the first magnetic steel and the second magnetic steel are opposite.
9. A loudspeaker according to claim 8, wherein: the magnetic shield is also fixedly connected with a first basin frame for installing a vibration system, and the vibration system comprises a vibrating diaphragm fixed on the first basin frame and a first voice coil arranged on the vibrating diaphragm.
10. A loudspeaker according to claim 8, wherein: the one end that first magnet steel kept away from the magnetic shield still fixedly connected with first pole piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420075828.2U CN220554107U (en) | 2024-01-12 | 2024-01-12 | Loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420075828.2U CN220554107U (en) | 2024-01-12 | 2024-01-12 | Loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220554107U true CN220554107U (en) | 2024-03-01 |
Family
ID=90006425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420075828.2U Active CN220554107U (en) | 2024-01-12 | 2024-01-12 | Loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220554107U (en) |
-
2024
- 2024-01-12 CN CN202420075828.2U patent/CN220554107U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |