CN206524947U - Inner and outer double folded ring speakers - Google Patents

Abstract

The utility model relates to the technical field of electroacoustic devices, and in particular to an inner and outer double folding ring loudspeaker. The utility model includes an outer frame, a fixing hole is provided in the middle of the outer frame and is connected to a U-shaped magnet, the bottom surface of the U-shaped magnet is sequentially bonded with a main permanent magnet, an upper magnet and an auxiliary permanent magnet from bottom to top; the upper end of the outer frame is bonded with an outer folding ring, the inner side of the outer folding ring is bonded with a vibration basin, and the inner end of the inner folding ring is bonded to the auxiliary permanent magnet; it also includes a voice coil, the upper end of the voice coil is respectively connected to the vibration basin and the outside of the inner folding ring, and the lower end of the voice coil is inserted into the gap between the U-shaped magnet and the upper magnet. The utility model can ensure the smooth axial movement of the voice coil, enhance the bass and ensure the sound quality through the cooperation of the inner folding ring, the outer folding ring and the vibration disk; at the same time, it can reduce the height of the speaker.

Description

Inner and outer double folded ring speakers

technical field

The utility model relates to the technical field of electroacoustic devices, in particular to an inner and outer double folded ring loudspeaker.

Background technique

During the use of the speaker, the electrical signal is converted into an acoustic signal; during the signal conversion process, the vibrating basin is driven to vibrate up and down by the force of the voice coil and the magnetic field, and the ring controls the sub-degree of the vibrating basin's up and down vibration and ensures the axial movement , to resonate with the surrounding air to produce sound; therefore, the vibration effect of the vibrating basin will have a great impact on the sound quality.

FIG. 1 shows an existing loudspeaker. During the use of the loudspeaker, the voice coil 10 in the middle needs to perform piston movement in the axial direction. In order to avoid the abnormal sound generated by the radial movement of the voice coil 10, it needs to be controlled by the centering strut 4 and the surround of the vibrating basin 6. Therefore, the damper 4, the vibrating basin 6 and the voice coil 10 are bonded and fixed together by glue, so they will also move along with it. In order to prevent the strut 4 from colliding with the vibrating basin 6 and the outer frame 5, generating noise and affecting the sound quality, a margin is designed in the design, such as the distance margins marked a and b in Figure 1. Therefore, the size of the loudspeaker is larger in terms of axial distance (height), and the overall volume is larger, which increases the cost.

Contents of the invention

The purpose of the utility model is to solve the deficiencies of the prior art, and provide an inner and outer double-fold ring loudspeaker, the height of the loudspeaker is reduced, and the cost is saved.

In order to achieve the above object, the technical solution adopted by the utility model is:

The inner and outer double-fold ring speakers include the outer frame, and the middle part of the outer frame is provided with a fixing hole and connected with a U-shaped magnet. The bottom surface of the U-shaped magnet is bonded with a main permanent magnet, an upper magnet and a secondary permanent magnet in sequence from bottom to top; The upper end of the outer frame is bonded with an outer ring, and the inner side of the outer ring is connected with a vibration basin, and the inner side of the inner ring is bonded to the auxiliary permanent magnet; it also includes a voice coil, and the upper end of the voice coil is connected to the vibration basin and the inner folding ring respectively. The outer diameter of the ring is connected, and the lower end of the voice coil is inserted into the gap between the U-shaped magnetizer and the upper magnetizer.

Further, the inner fold ring includes an inner adhesive part located on the inner side, an elastic part located on the middle part and an outer adhesive part located on the outer side, wherein the inner adhesive part is bonded to the auxiliary permanent magnet, and the outer adhesive part is bonded to the vibrating plate the inner end. Preferably, the shape of the elastic part can be selected from the shape of a commonly used ring in the market. The elastic portion is in the shape of a semicircle, an inverted "S" or an "M".

Further, the inner end of the vibrating plate is bent upward toward the magnetizer, and an accommodating space is formed between the inner end and the outer adhesive part, and an adhesive layer is provided in the accommodating space, and the upper end of the voice coil passes through the middle hole of the vibrating basin and the outer bonding part. Adhesive layer bonding. The inner end of the vibrating plate is glued and fixed on the voice coil through the adhesive layer.

Further, it also includes a wiring board, the wiring board is fixed on the outside of the outer frame, one end of the connecting wire is inserted into the hole of the wiring board and connected by soldering, and the other end of the connecting wire is connected to the lead-out wire of the voice coil.

The beneficial effects of the utility model are: the utility model can not only ensure the smooth axial movement of the voice coil and the sound quality through the cooperation of the inner ring and the vibrating plate, but also reduce the height of the loudspeaker.

Description of drawings

Figure 1 is a schematic diagram of the prior art.

Fig. 2 is a structural schematic diagram of the utility model.

Reference signs:

1——U-shaped magnet guide; 2—main permanent magnet; 3—upper magnet guide; 4—centering strut; 5—outer frame; 6—outer folding ring; 7—connecting wire; 8 ——voice coil; 9—wiring board; 10—vibration plate; 11—inner ring; 12—secondary permanent magnet.

detailed description

Below in conjunction with accompanying drawing, the utility model is described further.

Embodiment: Referring to Fig. 2, the speaker with inner and outer double folded rings includes an outer frame 5, and the middle part of the outer frame 5 is provided with a fixing hole and is connected with a U-shaped magnetizer 1, and the bottom surface of the U-shaped magnetizer 1 is sequentially installed with main Permanent magnet 2, upper magnetic conductor 3 and auxiliary permanent magnet 12; the upper end of outer frame 5 is equipped with outer ring 6, the inner side of outer ring 6 is connected with vibrating basin 10, and the inner side end of inner ring 11 is bonded to auxiliary Permanent magnet 12; also includes a voice coil 8, the upper end of the voice coil 8 is connected with the vibration basin and the inner ring 11 respectively, and the lower end of the voice coil 8 is inserted into the gap between the U-shaped magnetic conductor 1 and the upper magnetic conductor 3.

In this technical solution, the traditional centering strut 4 is removed; when the loudspeaker is working, in order to ensure the axial piston movement of the voice coil 8, the double cooperation control technology of the outer ring 6 and the inner ring 11 is adopted to prevent the voice coil 8 performs radial movement; at the same time, according to the action characteristics of the surround, the axial movement of the voice coil 8 is very smooth. It effectively reduces the F0 of the speaker, enhances the bass, and reduces the height of the speaker, thereby improving the sound quality of the speaker.

Wherein, the inner folded ring 11 includes an inner adhesive part located inside, an elastic part located in the middle and an outer adhesive part located outside, wherein the inner adhesive part is bonded to the auxiliary permanent magnet 12, and the outer adhesive part is bonded to the vibration The inner end of the disc 10. Preferably, the shape of the elastic part can be selected from the shape of a commonly used ring in the market.

In a specific design, the elastic portion can be in a semicircular shape, an inverted "S" shape, an "M" shape, or the like. Both the inner bonding part and the outer bonding part are annular planes, which are respectively bonded to the auxiliary permanent magnet 12 and the vibrating basin; the bonding area is increased.

Further, the middle hole of the inner side of the vibrating plate 10 is bent upward toward the magnetic conductor 3, and an accommodating space is formed between the inner side and the outer bonding part. The accommodating space is provided with an adhesive layer, and the upper end of the voice coil 8 passes through The middle hole of the vibrating basin 10 is bonded with the adhesive layer.

The upper end of the voice coil 8 is connected with the inner ring 11 and the vibrating plate 10 by setting an adhesive layer. The connection method is ingenious, and the connection area of the voice coil 8 is larger, which can be stably fixed. Prevent the voice coil 8 from coming off. The adhesive layer may specifically be a glue layer.

Further, the wiring board 9 is fixed on the outside of the outer frame 5 , one end of the connecting wire 7 is inserted into the hole of the wiring board 9 and connected by soldering, and the other end of the connecting wire 7 is connected to the lead-out wire of the voice coil 8 .

The above are only preferred embodiments of the present application, and equivalent technical solutions on this basis still fall within the protection scope of the application.

Claims (5)

1. The inner and outer double-fold ring speaker, including the outer frame, the middle part of the outer frame is provided with a fixing hole and connected with a U-shaped magnet. The bottom of the U-shaped magnet is bonded with the main permanent magnet, the upper magnet and the auxiliary permanent Magnet; the upper end of the outer frame is bonded with an outer ring, which is characterized in that: the inner side of the outer ring is connected with a vibrating basin, and the inner side of the inner ring is bonded to the secondary permanent magnet; it also includes a voice coil, and the upper ends of the voice coil are respectively It is connected with the vibrating basin and the outer diameter of the inner ring, and the lower end of the voice coil is inserted into the gap between the U-shaped magnet conductor and the upper magnet conductor. 2. The internal and external double-fold ring loudspeaker according to claim 1, characterized in that: the inner fold ring includes an inner adhesive part located on the inner side, an elastic part located on the middle part and an outer adhesive part located on the outer side, wherein the inner adhesive part It is bonded to the auxiliary permanent magnet, and the outer bonding part is bonded to the inner end of the vibrating plate. 3. The speaker according to claim 1, wherein the elastic part is in the shape of a semicircle, an inverted "S" or an "M". 4. The inner and outer double-fold ring loudspeaker according to claim 2, characterized in that: the inner end of the vibrating plate is bent toward the direction of the magnet guide, and an accommodating space is formed between the inner end and the outer bonding part, and the accommodating space is provided with An adhesive layer, the upper end of the voice coil is bonded to the adhesive layer through the middle hole of the vibrating basin. 5. The internal and external double-fold ring speaker according to claim 1, characterized in that: it also includes a wiring board, the wiring board is fixed on the outside of the outer frame, one end of the connecting wire is inserted into the hole of the wiring board and connected by soldering, and the connecting wire The other end is connected to the lead wire of the voice coil.