CN102724606A - Sounding device - Google Patents

Abstract

The invention discloses a sounding device which comprises a shell with an accommodating space and a sounding monomer placed in the shell. The sounding device is provided with a foam retaining wall for dividing the shell into a front cavity and a rear cavity opposite to the front cavity; the front cavity is communicated with the outside; the sounding monomer is placed in the front cavity; and a sound adsorption material is filled in the rear cavity. Compared with the relevant art, the sounding device has the advantage that the low-frequency sound effect is better.

Description

Sound device

【Technical field】

The invention relates to a sounding device, in particular to a sounding device used in portable electronic products.

【Background technique】

In the process of rapid development of portable devices such as mobile phones, people have increasingly strong requirements for the functionality of products. For the music appreciation function of mobile phones, in order to make the entertainment effect stronger, the mode of music with vibration appears. Therefore, the development of sound-generating devices has also been accelerated accordingly.

A sound-generating device in the related art, which includes a housing with a storage space and a sound-emitting monomer placed in the storage space, the sound-emitting monomer divides the storage space into a front cavity and a rear cavity opposite to the front cavity cavity, and the anterior cavity communicates with the outside world. This structure makes the sounding device have a larger rear cavity, so that the sounding device in the related art has a better low-frequency sound effect.

However, the back chamber of the sounding device of the related art is a closed structure, and the gas in the back chamber will hinder the movement of the diaphragm, and even increase the high-frequency resonance frequency of the sounding device of the related art, and reduce the low-frequency sound effect, thereby making the The acoustic performance of related art sound emitting devices is negatively affected.

Therefore, it is necessary to provide a new technical solution to overcome the above defects.

【Content of invention】

The purpose of the present invention is to provide a sound generating device with good low-frequency sound effect.

The purpose of the present invention is achieved like this:

A sounding device, which includes a housing with a housing space and a sounding unit placed in the housing, the sounding device is provided with a foam retaining wall to separate the housing into a front cavity and the front cavity Opposite to the rear cavity, the front cavity communicates with the outside world, the sound emitting unit is placed in the front cavity, and the rear cavity is filled with sound-absorbing materials.

Preferably, the sound-generating device is also provided with a packaging bag for accommodating and covering the sound-absorbing material, the packaging bag is made of foam, and the packaging bag containing the sound-absorbing material is filled in the rear cavity.

The invention has the following advantages: compared with the related art, the low-frequency sound performance of the sound generating device of the invention is better.

【Description of drawings】

Fig. 1 is a structural schematic diagram of the sound emitting device of the present invention.

【Detailed ways】

The present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, a sounding device 10 includes a housing 1 with a housing space and a sounding unit 2 placed in the housing 1, the sounding device 10 is provided with a foam retaining wall 5 to enclose the housing 1 It is divided into a front chamber 4 and a rear chamber 3 opposite to the front chamber 4 , the front chamber 4 communicates with the outside world, and the sound emitting unit 2 is placed in the front chamber 4 . The rear chamber 3 is filled with sound-absorbing material 6 . More preferably, the sound-generating device 10 is also provided with a packaging bag (not shown) for accommodating and covering the sound-absorbing material 6, the packaging bag is made of foam, and the packaging containing the sound-absorbing material 6 The bag is filled in the rear cavity 3 .

The shell is divided into a front chamber and a rear chamber opposite to the front chamber by a foam retaining wall, and the sound-absorbing material is filled in the rear chamber, and the foam retaining wall can prevent the filled sound-absorbing material from penetrating into the sound-emitting unit. Preferably, the sound-absorbing material is accommodated in a packaging bag made of foam, the packaging bag containing the sound-absorbing material is filled in the rear cavity, and the packaging bag made of foam is filled into the rear cavity for a certain amount of time. Excellent shock absorption effect, avoiding noise caused by shaking of the filled sound-absorbing material. At the same time, the packaging bag made of foam can adapt to the complex shape of the back cavity. Since the foam is sufficiently sparse, it has very little impact on the performance of the sound-generating device. Compared with related technologies, the sound generating device of the present invention has better low-frequency sound effect performance.

What has been described above is only the embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, improvements can be made without departing from the creative concept of the present invention, but these all belong to the present invention. scope of protection.

Claims (2)

1. A sounding device, which comprises a housing with an accommodation space and a sounding monomer placed in the housing, the sounding device is provided with a foam retaining wall to separate the housing into a front chamber and separate from the The front chamber is opposite to the rear chamber, the front chamber communicates with the outside world, the sound emitting unit is placed in the front chamber, and the feature is that: the rear chamber is filled with sound-absorbing materials. 2. The sound-generating device according to claim 1, characterized in that: the sound-generating device is also provided with a packaging bag for accommodating and covering the sound-absorbing material, the packaging bag is made of foam, and the absorbent The packaging bag of acoustic material is filled in the rear cavity.

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