CN212392988U

CN212392988U - Thin low-distortion high-sound-pressure doorbell loudspeaker

Info

Publication number: CN212392988U
Application number: CN202020739993.5U
Authority: CN
Inventors: 邢秀宏; 黄少基; 张松枝
Original assignee: Changzhou Chengming Electronic Technology Co ltd
Current assignee: Changzhou Chengming Electronic Technology Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2021-01-22
Anticipated expiration: 2030-05-08

Abstract

The utility model relates to a slim low distortion high sound pressure doorbell speaker belongs to speaker preparation technical field. The flowerpot comprises an upper shell, a pot frame and a lower shell, wherein the upper shell is a hollow structure with an opening at the bottom surface and an oval opening at the top surface; the magnetic bowl type voice coil loudspeaker is characterized in that the pot frame is of a cuboid structure, a runway type magnetic bowl groove with semicircular two ends is formed in the center of the pot frame, a runway type voice film groove is formed above the magnetic bowl groove, a magnetic bowl which is through up and down is clamped in the magnetic bowl groove, a circuit board, magnetic steel, a pole piece and a voice coil sleeved on the outer side of the pole piece are sequentially arranged in the magnetic bowl from bottom to top, a voice film is arranged in the voice film groove, and the upper edge of the voice coil is contacted with the voice film; the lower shell is of a hollow structure with an opening in the top surface, a plurality of top posts are arranged on the inner wall of the lower shell, and the bottom of the basin stand is clamped and installed at the tops of the top posts.

Description

Thin low-distortion high-sound-pressure doorbell loudspeaker

Technical Field

The utility model relates to a slim low distortion high sound pressure doorbell speaker belongs to speaker preparation technical field.

Background

At present, the pole piece that current runway type voice coil loudspeaker voice coil doorbell speaker corresponds on the market, magnetism bowl shape nonconformity lead to the vibration atress situation different, easy distortion, and circular voice coil loudspeaker voice coil vibration area is little, lead to the sound pressure to hang down, and the shell takes place resonance with inside spare part easily moreover, leads to vibration disequilibrium to make speaker sound pressure step-down.

In view of the above-mentioned drawbacks, the present designer is actively making research and innovation to create a low distortion and high sound pressure doorbell speaker, which has more industrial application value.

Disclosure of Invention

In order to solve the above technical problem, an object of the present invention is to provide a thin low distortion high sound pressure doorbell speaker.

The utility model discloses a slim low distortion high sound pressure doorbell speaker product structure is little, thickness is thin, because the magnetism bowl of design, the magnet steel, the pole piece, the voice coil loudspeaker voice coil, the sound membrane all adopts the geometry to correspond the same runway type, so make each partial atress condition of vibration balanced, thereby sensitivity is improved, reduce the distortion, increase power, can realize the required low distortion of non-circular miniature electro-acoustic device design, high power, widen advantages such as frequency range, runway type voice coil loudspeaker voice coil design is compared in traditional circular in addition, vibration area is bigger, the acoustic pressure improves, in addition, the setting of the internal portion withstand of inferior valve, the unbalance that can avoid the vibration that resonance leads to makes this sound production device output sound pressure reduce's problem production, further improve the acoustic pressure of speaker, wide application prospect has.

The utility model relates to a thin type low distortion high sound pressure doorbell loudspeaker, which comprises an upper shell, a basin frame and a lower shell,

the upper shell is a hollow structure with an opening at the bottom surface and an oval opening at the top surface;

the magnetic bowl type voice coil loudspeaker is characterized in that the pot frame is of a cuboid structure, a runway type magnetic bowl groove with semicircular two ends is formed in the center of the pot frame, a runway type voice film groove is formed above the magnetic bowl groove, a magnetic bowl which is through up and down is clamped in the magnetic bowl groove, a circuit board, magnetic steel, a pole piece and a voice coil sleeved on the outer side of the pole piece are sequentially arranged in the magnetic bowl from bottom to top, a voice film is arranged in the voice film groove, and the upper edge of the voice coil is contacted with the voice film;

the lower shell is of a hollow structure with an opening in the top surface, a plurality of top posts are arranged on the inner wall of the lower shell, and the bottom of the basin stand is clamped and installed at the tops of the top posts.

Furthermore, the cross section of the upper shell and the cross section of the lower shell are the same in shape, the lower edge of the upper shell is provided with a convex edge which contracts inwards, the upper edge of the lower shell is provided with a groove matched with the convex edge of the upper shell, and the upper shell and the lower shell are clamped and installed through the convex edge and the groove.

Furthermore, the magnetic bowl, the magnetic steel, the pole piece and the voice coil are all in a runway shape corresponding to and the same as the shape of the magnetic bowl groove.

Further, the sound film is of a track type with the shape corresponding to the sound film groove.

Further, the number of the top pillars is 12.

Further, the sound film is made of a composite material of polyether-ether-ketone and polyetherimide.

By the scheme, the invention at least has the following advantages:

the utility model discloses a slim low distortion high sound pressure doorbell speaker product structure is little, thickness is thin, because the magnetism bowl of design, the magnet steel, the pole piece, the voice coil loudspeaker voice coil, the sound membrane all adopts the geometry to correspond the same runway type, so make each partial atress condition of vibration balanced, thereby sensitivity is improved, reduce the distortion, increase power, can realize the required low distortion of non-circular miniature electro-acoustic device design, high power, widen advantages such as frequency range, runway type voice coil loudspeaker voice coil design is compared in traditional circular in addition, vibration area is bigger, the acoustic pressure improves, furthermore, the setting of internal top post of inferior valve, the unbalance that can avoid the vibration that resonance leads to makes this sound production device output sound pressure reduce's problem production, further improve the acoustic pressure of speaker, wide application prospect has.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood and to be implemented in accordance with the content of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate a certain embodiment of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of the self-contained structure of the thin low distortion high sound pressure doorbell speaker of the present invention;

fig. 2 is an exploded view of the thin low distortion high sound pressure doorbell loudspeaker of the present invention;

FIG. 3 is a schematic view of the three-dimensional structure of the "frame" of the thin low distortion high sound pressure doorbell speaker of the present invention;

fig. 4 is a schematic perspective view of a "lower case" of the thin low distortion high sound pressure doorbell speaker of the present invention;

fig. 5 is a schematic top view of the "lower case" of the thin low distortion high sound pressure doorbell speaker of the present invention;

wherein, in the figure, 1, an upper shell; 2. a sound membrane; 3. a basin stand; 4. a voice coil; 5. pole pieces; 6. a magnetic bowl; 7. magnetic steel; 8. a circuit board; 9. a lower housing; 10. a magnetic bowl groove; 11. a sound film groove; 12. and (4) a top pillar.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 5, a thin low distortion high sound pressure doorbell speaker according to a preferred embodiment of the present invention includes an upper casing 1, a frame 3 and a lower casing 9, wherein the upper casing 1 is a hollow structure with an opening on the bottom surface and an oval opening on the top surface; the pot frame 3 is of a cuboid structure, a runway-shaped magnetic bowl groove 10 with semicircular two ends is formed in the center of the pot frame 3, a runway-shaped sound film groove 11 is formed above the magnetic bowl groove 10, a magnetic bowl 6 which is through from top to bottom is clamped in the magnetic bowl groove 10, a circuit board 8, magnetic steel 7, a pole piece 5 and a voice coil 4 sleeved on the outer side of the pole piece 5 are sequentially arranged in the magnetic bowl 6 from bottom to top, a sound film 2 is arranged in the sound film groove 11, the sound film 2 is made of polyether ether ketone and polyetherimide composite materials, and the upper edge of the voice coil 4 is contacted with the sound film 2; the magnetic bowl 6, the magnetic steel 7, the pole piece 5 and the voice coil 4 are track-shaped and correspond to the magnetic bowl groove 10 in shape. The sound film 2 is of a track type corresponding to the shape of the sound film groove 11. The designed magnetic bowl 6, the magnetic steel 7, the pole piece 5, the voice coil 4 and the sound film 2 are in the same track type corresponding to the geometric shapes, so that the stress condition of each part of vibration is balanced, the sensitivity is improved, the distortion is reduced, the power is improved, the advantages of low distortion, high power, frequency range widening and the like required by the design of a non-circular miniature electroacoustic device can be realized, and compared with the traditional circular design, the track type voice coil 4 has the advantages of larger vibration area and capability of improving the sound pressure of a loudspeaker. Casing 9 is top surface open-ended hollow structure down, evenly is equipped with 12 fore-set 12 on casing 9 inner wall down, and the setting of casing 9 inside fore-set 12 down can avoid the unbalance of vibration that resonance leads to make the problem production that speaker output sound pressure reduces, further improves the acoustic pressure of speaker, 3 bottom joints of basin frame are installed at fore-set 12 tops. The cross section shapes of the upper shell 1 and the lower shell 9 are the same, the lower edge of the upper shell 1 is provided with a convex edge which contracts inwards, the upper edge of the lower shell 9 is provided with a groove matched with the convex edge of the upper shell 1, and the upper shell 1 and the lower shell 9 are clamped and installed through the convex edge and the groove.

The working principle of the utility model is as follows:

the utility model discloses a slim low distortion high sound pressure doorbell speaker product structure is little, thickness is thin, because the magnetism bowl 6 of design, magnet steel 7, pole piece 5, voice coil loudspeaker voice coil 4, sound membrane 2 all adopts the geometry to correspond the same runway type, so make each partial atress condition of vibration balanced, thereby sensitivity is improved, reduce the distortion, increase power, can realize the required low distortion of non-circular miniature electroacoustic device design, high power, widen advantages such as frequency range, runway type voice coil loudspeaker voice coil 4 design is compared in traditional circular, vibration area is bigger, the acoustic pressure improves, furthermore, the setting of 9 inside fore-set 12 of casing down, the unbalance that can avoid the vibration that resonance leads to makes the problem production that this sounder output acoustic pressure reduces, further improve the acoustic pressure of speaker, wide application prospect has.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a high sound pressure doorbell speaker of slim low distortion, includes casing (1), basin frame (3) and casing (9) down, its characterized in that:

the upper shell (1) is of a hollow structure with an opening at the bottom surface and an oval opening at the top surface;

the improved voice coil loudspeaker is characterized in that the basin frame (3) is of a cuboid structure, a track type magnetic bowl groove (10) with semicircular two ends is formed in the center of the basin frame (3), a track type voice coil groove (11) is formed above the magnetic bowl groove (10), a magnetic bowl (6) which is through up and down is clamped in the magnetic bowl groove (10), a circuit board (8), magnetic steel (7), a pole piece (5) and a voice coil (4) sleeved on the outer side of the pole piece (5) are sequentially arranged in the magnetic bowl (6) from bottom to top, a voice coil (2) is arranged in the voice coil groove (11), and the upper edge of the voice coil (4) is contacted with the voice coil (2);

the lower shell (9) is of a hollow structure with an open top surface, a plurality of top columns (12) are arranged on the inner wall of the lower shell (9), and the bottom of the basin stand (3) is clamped and installed at the tops of the top columns (12).

2. The low distortion high sound pressure doorbell speaker of claim 1, further comprising: go up casing (1) and casing (9) cross sectional shape the same down, go up casing (1) lower limb department and be equipped with the bead that contracts in, casing (9) top edge is equipped with and goes up casing (1) bead assorted recess down, goes up and installs through bead and recess joint between casing (1) and the lower casing (9).

3. The low distortion high sound pressure doorbell speaker of claim 1, further comprising: the magnetic bowl (6), the magnetic steel (7), the pole piece (5) and the voice coil (4) are all track types corresponding to the same shape of the magnetic bowl groove (10).

4. The low distortion high sound pressure doorbell speaker of claim 1, further comprising: the sound film (2) is of a runway shape corresponding to the shape of the sound film groove (11).

5. The low distortion high sound pressure doorbell speaker of claim 1, further comprising: the total number of the top columns (12) is 12.