CN104837089A - Sound structure of wireless positioning terminal - Google Patents

Abstract

The invention discloses a sound outlet structure of a wireless positioning terminal, which comprises an upper end cover and a lower end cover, wherein the upper end cover and the lower end cover are respectively provided with an upper rib and a lower rib, a loudspeaker is arranged between the upper rib and the lower rib, the upper end cover is provided with a sound outlet hole, the upper rib is annular, a loudness enhancement device is arranged between the inner diameter of the upper rib and the upper end cover, the sound outlet hole is positioned in the loudness enhancement device, the sound outlet hole comprises a central hole and a plurality of layers of peripheral holes, and the sound outlet effect is good.

Description

Sound structure of wireless positioning terminal

technical field

The present invention relates to the field of wireless positioning terminal devices, in particular to a sound output structure of a wireless positioning terminal.

Background technique

With the development of communication technology and the continuous popularization of automobiles in people's lives, the application of vehicle-mounted terminals is becoming more and more extensive. Vehicle-mounted terminals usually integrate rich functions such as positioning, communication, and driving safety control, have powerful business scheduling and data processing capabilities, and provide users with rich peripheral interfaces.

With the continuous improvement of people's living standards and the continuous construction of roads, vehicle-mounted terminals are becoming more and more important, especially wireless positioning terminals. In order to make the loudspeaker’s loudspeaker effect play and make it have an excellent broadcasting effect, the patent whose authorized notification number is CN200031873U is adopted, which sets ribs on the upper end cover and the lower end cover, and uses the ribs to fix the speaker, so that the upper end cover The upper and lower sound chambers are formed with the lower end cover to optimize the sound effect. However, the volume of the upper sound cavity and the lower sound cavity is large, and the sound output effect of the sound outlet is not ideal.

Contents of the invention

The technical problem to be solved by the present invention is to provide a sound output structure of a wireless positioning terminal, which has a good sound output effect.

The technical solution adopted by the present invention to solve the above problems is:

A sound output structure of a wireless positioning terminal, comprising an upper end cover and a lower end cover, the upper end cover and the lower end cover are respectively provided with an upper rib and a lower rib, and the upper rib and the lower rib are arranged between the upper rib and the lower rib There is a loudspeaker, the upper end cover is provided with a sound outlet, the upper rib is ring-shaped, and a loudness enhancement device is arranged between the inner diameter of the upper rib and the upper end cover, and the sound outlet Located in the loudness enhancement device, the sound output hole includes a central hole and multi-layer peripheral holes.

The present invention has made improvements on the basis of the prior art. First, a loudness enhancement device is arranged between the inner diameter of the upper rib and the upper end cover, and the loudness enhancement device is used to reduce the loss of sound and enhance the sound at the sound hole Loudness; Second, the structure and quantity of the sound hole are improved, and the existing two layers of the hole are set into multiple layers to enhance the sound effect.

As a preference, the loudness enhancement device is shaped like a horn, the mouth of which is located around the sound hole, and the bottom of the horn is fixed on the inner diameter of the upper rib. Trumpet-shaped, the end with a larger diameter is the mouth of the horn, and the end with a smaller diameter is the bottom of the horn. The horn-shaped structure can reduce the diffusion of sound and make the sound spread to the sound hole, which can increase the loudness of the sound from the sound hole; the loudness enhancement device is connected between the upper end cover and the upper rib, which can also strengthen the upper rib Stability of the strip structure.

Preferably, in order to further enhance the stability of the structure, a vibration-absorbing layer is provided at the contact part between the speaker and the upper rib and the lower rib. During the driving process of the vehicle, due to the heavy weight of the speaker, when the vehicle is bumping, the pressure of the speaker on the upper rib and the lower rib is too large, so that the upper rib and the lower rib are easily damaged, and the shock-absorbing layer is used to buffer the pressure , enhance the stability of the structure.

Further, the shock-absorbing layer is a rubber layer.

Further, the shock-absorbing layer is a foam layer.

The shock-absorbing layer should be made of light and soft materials. The soft texture achieves the purpose of shock absorption; since the shock-absorbing layer is located on the lower rib, the weight is lighter, so it will not bring a burden to the lower rib.

In sum, the beneficial effects of the present invention are:

1. In the present invention, a loudness enhancement device is added between the inner diameter of the upper rib and the upper end cover, that is, a loudness enhancement device is installed in the upper sound cavity to enhance the sound output of the sound outlet.

2. The present invention improves the structure and quantity of the sound outlet holes, and sets the existing two layers of holes into multiple layers to enhance the sound output effect.

3. The contact part of the loudspeaker of the present invention and the upper rib and the lower rib is provided with a shock absorbing layer, and the shock absorbing layer is used to buffer the pressure and enhance the stability of the structure.

Description of drawings

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

The marks in the drawings and the names of corresponding parts: 1. Upper end cover; 2. Lower end cover; 3. Upper rib; 4. Lower rib; 5. Loudspeaker; 6. Damping layer; 7. Loudness enhancement device; 8 , Sound hole.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments and accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example 1:

A sound output structure of a wireless positioning terminal as shown in Figure 1, comprising an upper end cover 1 and a lower end cover 2, the upper end cover 1 and the lower end cover 2 are respectively provided with an upper rib 3 and a lower rib 4, so A loudspeaker 5 is arranged between the upper rib 3 and the lower rib 4, the upper end cover 1 is provided with a sound hole 8, the upper rib 3 is ring-shaped, and the upper rib 3 A loudness enhancement device 7 is arranged between the inner diameter of the upper end cap 1, and the sound outlet hole 8 is located in the loudness enhancement device 7, and the sound outlet hole 8 includes a central hole and a multi-layer peripheral hole.

The sound output hole 8 is set as a multi-layer structure, which increases the area for sound output and enhances the sound output effect.

Example 2:

A sound output structure of a wireless positioning terminal as shown in Figure 1, this embodiment refines the loudness enhancement device on the basis of the above-mentioned embodiment, that is, the loudness enhancement device 7 is horn-shaped, and its horn Mouth is positioned at the periphery of sound hole 8, and the bottom of the horn is fixed on the upper rib 3 inner diameter.

Example 3:

As shown in Figure 1, the sound output structure of a wireless positioning terminal, in order to enhance the stability of the structure, this embodiment is optimized on the basis of the above embodiment, that is, the speaker 5 and the upper rib 3 and the lower rib 3 The contact parts of the ribs 4 are provided with a shock-absorbing layer 6 .

The shock-absorbing layer 6 is a rubber layer or a foam layer. The texture of foam or rubber is soft, which can better absorb shocks and will not increase the pressure on the lower ribs.

As described above, the present invention can be preferably carried out.

Claims (5)

1. The sound output structure of the wireless positioning terminal includes an upper end cover (1) and a lower end cover (2). The upper end cover (1) and the lower end cover (2) are respectively provided with upper ribs (3) and lower ribs bar (4), the speaker (5) is set between the upper rib (3) and the lower rib (4), and the upper end cover (1) is provided with a sound hole (8), its characteristic In that: the upper rib (3) is ring-shaped, a loudness enhancement device (7) is arranged between the inner diameter of the upper rib (3) and the upper end cover (1), and the sound outlet ( 8) Located in the loudness enhancement device (7), the sound outlet hole (8) includes a central hole and multiple layers of peripheral holes. 2. The sound output structure of the wireless positioning terminal according to claim 1, characterized in that: the loudness enhancement device (7) is in the shape of a horn, and its horn mouth is located around the sound outlet hole (8), and the bottom of the horn is Be fixed on the inner diameter of the upper rib (3). 3. The sound output structure of the wireless positioning terminal according to claim 1, characterized in that: the contact part between the speaker (5) and the upper rib (3) and the lower rib (4) is provided with a shock-absorbing layer (6). 4. The sound emitting structure of the wireless positioning terminal according to claim 3, characterized in that: the shock absorbing layer (6) is a rubber layer. 5. The sound emitting structure of the wireless positioning terminal according to claim 3, characterized in that: the shock-absorbing layer (6) is a foam layer.