CN204231661U - A kind of loud speaker - Google Patents

Abstract

The utility model discloses a loudspeaker, which comprises an auxiliary system, a magnetic circuit system and a vibration system. The auxiliary system includes a front cover and a casing. The inner side wall of the casing extends inwardly and is provided with a fixing part for fixing the front cover. , the edge portion on the inner side of the front cover is provided with an undulating rubberized tape, and the shape of the position where the fixing part inside the housing is facing the coated tape is adapted to the shape of the coated tape on the front cover, The front cover is adhered to the fixing part inside the housing through the adhesive tape. The loudspeaker of the utility model increases the usable space of the inner cavity while achieving the waterproof effect.

Description

a speaker

technical field

The utility model relates to the technical field of electroacoustic products, in particular to a loudspeaker.

Background technique

Loudspeakers are indispensable acoustic components in electro-acoustic products, which are used to convert electrical energy into sound energy. Common electro-acoustic products include mobile phones, tablet computers, etc. With the advancement of technology and the improvement of user needs, mobile phones, tablet computers, etc. are required to Electroacoustic products have better waterproof performance, which requires the speaker to have good waterproof performance.

Fig. 1 is the sectional structure schematic diagram of existing loudspeaker; With reference to Fig. 1, existing loudspeaker generally comprises auxiliary system, magnetic circuit system and vibration system, and auxiliary system generally comprises front cover and shell, and shell and front cover encircle the inside of loudspeaker. Cavity, the inner cavity of the speaker is used to accommodate the magnetic circuit system and the vibration system. The inner wall of the housing extends inwards and is provided with a fixing part for fixing the front cover. Glue is applied on the coated tape, so that the front cover is bonded to the fixed part inside the shell through the coated tape, so as to achieve the effect of sealing and waterproofing. However, for a loudspeaker with this structure, the width of the annular coated tape on the inner side of the front cover needs to be more than 0.7mm, so that the front cover and the fixing part inside the housing can be firmly bonded to achieve the expected effect of waterproofing. Like this, just require the width of the fixed portion inside the shell to reach more than 0.7mm, and the width of the fixed portion inside the shell is larger, it will occupy the space of the speaker inner cavity, reduce the available space of the speaker inner cavity, and make the The space in the speaker cavity is not fully utilized.

Utility model content

The technical problem to be solved by the utility model is: to provide a loudspeaker which increases the usable space of the inner cavity while achieving the waterproof effect.

For solving the problems of the technologies described above, the technical solution of the utility model is:

A speaker, including an auxiliary system, a magnetic circuit system and a vibration system, the auxiliary system includes a front cover and a casing, the inner side wall of the casing extends inwardly and is provided with a fixing part for fixing the front cover, the front cover An undulating rubberized tape is provided on the edge of the inner surface, and the shape of the fixed part on the inner side of the housing facing the coated tape is adapted to the shape of the coated tape of the front cover, and the front cover passes through the The coated tape is bonded to the fixed portion inside the housing.

Preferably, the vibration system includes a diaphragm, and the diaphragm includes a positioning part, the positioning part is fixed between the front cover and the housing; the positioning part corresponds to the shape of the front cover coating tape.

Preferably, the coated tape is wavy.

Preferably, the coated tape is stepped.

Preferably, the coated tape is in an inverted ladder shape.

Preferably, the straight line width of the coated tape is less than 0.7mm.

After adopting above-mentioned technical scheme, the beneficial effect of the utility model is:

In the loudspeaker of the present utility model, the adhesive tape is undulating, and the fixing part inside the housing for fixing the front cover is also undulating, and the convex part of the coating tape is facing the concave part of the fixing part inside the housing, and the adhesive tape is The recessed part is facing the raised part of the fixed part inside the shell, so that the coated tape and the fixed part inside the shell can be well attached together for bonding. Compared with the coated tape with the same linear width, the undulating coated tape can effectively increase the surface area of the coated tape, and thus effectively increase the bonding area between the coated tape and the fixed part inside the casing. Therefore, after the loudspeaker of the present invention adopts the undulating coated tape, when the straight line width of the coated tape is less than 0.7mm, the required bonding strength can be achieved when the coated tape is bonded to the fixed part inside the shell, effectively Play the role of sealing and waterproofing. Therefore, compared with the existing loudspeaker, in the speaker of the present invention, the coated tape of the front cover can adopt a relatively smaller width, so that the fixing part inside the shell for fixing with the coated tape can also adopt a relatively smaller width. width. In this way, the space of the inner cavity of the speaker occupied by the fixed part inside the casing is effectively reduced, and the available space of the inner cavity of the speaker is relatively increased. The space of the inner cavity of the loudspeaker is fully utilized.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

FIG. 1 is a schematic cross-sectional structure diagram of an existing loudspeaker;

Fig. 2 is a front structural schematic diagram of the speaker embodiment 1 of the present invention;

Fig. 3 is a top view structural schematic diagram of Fig. 2;

Fig. 4 is a schematic cross-sectional structure diagram of the first embodiment of the loudspeaker of the present invention;

Fig. 5 is a schematic diagram of the explosion structure of Embodiment 1 of the loudspeaker of the present invention;

Fig. 6 is a schematic cross-sectional structure diagram of the second embodiment of the loudspeaker of the present invention;

Fig. 7 is a schematic cross-sectional structure diagram of the third embodiment of the loudspeaker of the present invention;

In the figure: 1. shell; 11. fixed part; 2. front cover; 21. coated tape; 3. diaphragm; 31. positioning part; 4. reinforcement; 5. voice coil; 6. center washer; 7 , Center magnet; 8, Side washer; 9, Side magnet; 10, Electrical connector.

Detailed ways

Embodiment one

Fig. 2 is a front structural schematic diagram of the speaker embodiment one of the present utility model; Fig. 3 is a top view structural schematic diagram of Fig. 2; Fig. 4 is a sectional structural schematic diagram of the speaker embodiment one of the present utility model; Fig. 5 is a schematic structural view of the utility model A schematic diagram of the explosion structure of the loudspeaker embodiment one.

Referring to accompanying drawing 2, Fig. 3, Fig. 4 and Fig. 5, a kind of loudspeaker comprises auxiliary system, magnetic circuit system and vibrating system, auxiliary system comprises front cover 2 and shell 1, and the inner side wall of shell 1 extends inwardly and is provided with for Fix the fixed portion 11 of the front cover 2, the edge portion on the inner side of the front cover 2 is provided with an undulating rubberized tape 21, the fixed portion 11 on the inside of the housing 1 is facing the shape of the coated tape 21 and the coated tape of the front cover 2 21, the coated tape 21 on the front cover 2 is glued to the fixed part 11 inside the shell 1, so that the front cover 2 and the shell 1 are combined together to form a speaker for containing the magnetic circuit system and the vibration system lumen.

In the loudspeaker of this embodiment, the coated tape 21 on the front cover 2 is alternately provided with convex parts and recessed parts to form an undulating coated tape. The fixed portion 11 of the cover 2 is also provided with protruding portions and recessed portions alternately, forming an undulating fixed portion. In this embodiment, the fixed portion in the housing 1 is wave-shaped, and the convex portion of the coating tape 21 is facing At the recessed part of the fixed part 11 inside the shell 1, the recessed part of the coated tape 21 is facing the raised part of the fixed part 11 inside the shell 1, so that the coated tape 21 is in good contact with the fixed part 11 inside the shell 1 glued together. In this embodiment, the straight line width of the coating tape 21 is less than 0.7mm. In FIG. The magnet 9 is provided with edge washer 8 . The vibration system includes a diaphragm 3 and a voice coil 5 combined with the diaphragm 3 , the vibration system also includes an electrical connector 10 , and the diaphragm 3 is combined with a reinforcing member 4 for enhancing the strength of the diaphragm. The diaphragm 3 includes a positioning portion 31 , which is fixed between the front cover 2 and the housing 1 ;

Of course, the magnetic circuit system and the vibration system can also take other structures, such as the magnetic circuit system can take the following structure: the magnetic circuit system includes an inner magnet and an inner magnet, and the inner magnet is surrounded by a ring-shaped outer magnet, and the inner magnet There is a ring-shaped Waihua Division around the division. The utility model does not limit the structure of the magnetic circuit system and vibration system, no matter what structure the magnetic circuit system and vibration system of the loudspeaker adopts, as long as the coated tape of the front cover is undulating, the inner side of the shell is used to fix the front cover. The portion is undulating, just falls into the protection domain of the present utility model.

In this embodiment, both the shell 1 and the front cover 2 are square. Of course, the shell 1 and the front cover 2 are not limited to the square shape, and those skilled in the art can make deformations accordingly, and the deformed structures all fall within the protection scope of the present invention.

Embodiment two

Fig. 6 is a schematic cross-sectional structure diagram of the second embodiment of the loudspeaker of the present invention.

Referring to FIG. 6 , the speaker structure of the second embodiment is basically the same as that of the first embodiment, except that the coated tape 21 on the front cover 2 is stepped. Setting the coated tape 21 on the front cover 2 in a trapezoidal shape can reduce the depth of the recess on the front cover 2 and reduce the difficulty of making the front cover 2 .

Embodiment Three

Fig. 7 is a schematic cross-sectional structure diagram of the third embodiment of the loudspeaker of the present invention.

Referring to FIG. 7 , the speaker structure of the third embodiment is basically the same as that of the first embodiment, except that the coated tape 21 is in the shape of an inverted ladder. Setting the coated tape 21 on the front cover 2 into an inverted trapezoid can reduce the depth of the recess on the front cover 2 and reduce the difficulty of making the front cover 2 .

In the loudspeaker of the present utility model, the coated tape 21 on the front cover 2 is undulating, and the fixed part 11 inside the housing 1 for fixing the front cover 2 is also undulating, and the raised part of the coated tape 21 is facing the inside of the housing 1. At the recessed part of the fixed part 11, the recessed part of the coated tape 21 is facing the raised part of the fixed part 11 inside the shell 1, so that the coated tape 21 and the fixed part 11 inside the shell 1 are well attached to each other. Glue together. Compared with the coated tape 21 with the same straight line width, the undulating coated tape 21 can effectively increase the surface area of the coated tape 21, which effectively increases the adhesion between the coated tape 21 and the fixed part 11 inside the housing 1 area. Therefore, after the front cover 2 in the loudspeaker of the present invention adopts the undulating adhesive tape 21, when the straight line width of the adhesive tape 21 is less than 0.7 mm, the adhesive tape 21 can be bonded to the fixing portion 11 inside the casing 1. It can achieve the required bonding strength in due time and effectively play the role of sealing and waterproofing. Therefore, compared with the existing loudspeaker, in the speaker of the present invention, the coated tape 21 of the front cover 2 can take a relatively small width, so that the fixing part 11 used to fix the coated tape 21 on the inside of the casing 1 can also be Take a relatively small width. In this way, the space of the inner cavity of the speaker occupied by the fixed part 11 inside the casing 1 is effectively reduced, and the available space of the inner cavity of the speaker is relatively increased. The space of the inner cavity of the loudspeaker is fully utilized.

In the loudspeaker of the present invention, in the loudspeaker of the present invention, the front cover 2 and the shell 1 adopt the structure of the front cover 2 and the shell 1 with the above structure. The rest of the structure of the speaker is not limited to the above-mentioned structure, as long as the front cover 2 and the shell 1 in the speaker adopt the structure of the above-mentioned front cover 2 and the shell 1, and no matter what structure the rest of the speaker takes, it will fall into the scope of the present invention. within the scope of protection.

The above descriptions are examples of the best implementation modes of the present utility model, and the parts not mentioned in detail are the common knowledge of those skilled in the art. The protection scope of the present utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the present utility model is also within the protection scope of the present utility model.

Claims (6)

1. A loudspeaker, comprising an auxiliary system, a magnetic circuit system and a vibration system, the auxiliary system comprising a front cover and a casing, the inner side wall of the casing extends inwardly and is provided with a fixing portion for fixing the front cover, its feature In that: the edge portion on the inner side of the front cover is provided with undulating rubber-coated tapes, and the shape of the fixed part on the inner side of the housing facing the coated tapes is adapted to the shape of the coated tapes of the front cover , the front cover is adhered to the fixing part inside the housing through the adhesive tape. 2. The loudspeaker according to claim 1, wherein the vibration system includes a diaphragm, and the diaphragm includes a positioning part, and the positioning part is fixed between the front cover and the housing; The positioning part corresponds to the shape of the coating tape on the front cover. 3. The loudspeaker according to claim 1, wherein the coated tape is in a wave shape. 4. The loudspeaker according to claim 1, wherein the coated tape is in a stepped shape. 5. The loudspeaker according to claim 1, wherein the coated tape is in the shape of an inverted ladder. 6. The loudspeaker according to any one of claims 1 to 5, characterized in that: the straight line width of the coated tape is less than 0.7mm.