CN103856863B - Sound source output device and audio-visual output device using the sound source output device - Google Patents

Abstract

A sound source output device comprises a shell, a first speaker, a second speaker and a sound guide plate. The first speaker is a circular speaker and is arranged on the shell. The first speaker faces a first direction. The second speaker is arranged on the shell and faces a second direction different from the first direction. The sound guide plate is a square plate and is located on the first speaker and keeps a predetermined distance from the first speaker.

Description

Sound source output device and audio-visual output device using the sound source output device

technical field

The invention relates to a sound source output device and an audio-visual output device using the sound source output device, in particular to a sound source output device with dual sound sources and an audio-video output device using the sound source output device.

Background technique

The rapid progress of the multimedia society is mostly benefited from the rapid development of semiconductor devices or display devices. As far as the display device is concerned, the cathode display tube (or called picture tube, Cathode Ray Tube, CRT) display device has been monopolizing the display market due to its excellent display quality and economy. However, the CRT-type display device has the problems of being too large and consuming too much energy. For the requirements of high image quality, low power consumption, thin mass production, low-voltage drive, and small size, the CRT-type display device obviously cannot meet this requirement. In view of this point, Liquid Crystal Display (LCD for short) will have great advantages, and LCD has been widely used in various thin TVs, video phones, camcorders, notebook computers, desktop monitors , tablet computers, and projection color TVs.

Taking thin TV as an example, in order to cope with the design of thin TV, the speaker of the TV must also develop towards thinner. However, once the volume of the speaker is reduced, the sound quality of the speaker will also be affected.

For example, because the shape of the speaker is adapted to the actual available space, the length of the horizontal axis and the vertical axis of the shape of the speaker may be different, resulting in uneven amplitude and distortion. Or, because the vibration area of the speaker is small, the low-frequency extension of the speaker is insufficient, resulting in a narrow sound range. In addition, existing thin TVs have multiple sets of speakers with different audio frequencies at the same time, so as to achieve a stereo sound effect and improve the overall sound quality of the TV. However, due to the limitation of the actual space, the sound directions of the speakers of these different audio frequencies of the thin TV are often not the same, so that the sound of the TV has a sense of separation and fails to achieve the expected stereo sound effect.

Contents of the invention

The object of the present invention is to provide a sound source output device and an audio-visual output device using the sound source output device, so as to improve the sound quality of the audio-video output device.

The sound source output device disclosed in the present invention includes a casing, a first speaker part, a second speaker part and a sound guide plate. The first speaker is a circular horn, and is arranged on the casing, and the first speaker faces a first direction. The second speaker is disposed on the casing and faces a second direction different from the first direction. The sound guide plate is a square plate, and is located on the first speaker and keeps a predetermined distance from the first speaker.

The video and audio output device disclosed in the present invention includes a main body, a display screen and a sound source output device. The main body has a first side and a second side opposite to each other. The display screen is on the first side. The sound source output device includes a casing, a first speaker part, a second speaker part and a sound guide plate. The casing has a first surface and a third surface opposite to each other, and a second surface connected between the first surface and the third surface. The casing is disposed on the main body, and the third surface faces the second side. The first speaker is a circular horn, and is arranged on the first surface of the casing, and the first speaker faces a first direction. The second speaker is disposed on the second surface of the housing and faces a second direction different from the first direction. The sound guide plate is a square plate, and is located on the first speaker, and keeps a predetermined distance from the first speaker.

According to the sound source output device disclosed in the present invention and the audio-visual output device using the sound source output device, the first speaker part adopts a circular horn to have a larger vibration area to enhance the low-frequency sound of the first speaker part. quality and sound pressure. The use of the sound guide plate as a square plate is beneficial to concentrate the sound waves of the first speaker to improve the quality of the sound source.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

FIG. 1 is a structural perspective view of a sound source output device according to an embodiment of the present invention;

Fig. 2 is an exploded view of the structure of the sound source output device according to Fig. 1;

Fig. 3 is a structural side view of the sound source output device according to Fig. 1;

FIG. 4 is a schematic structural diagram of an audio-video output device according to an embodiment of the present invention.

Among them, reference signs

1 AV output device

10 audio output device

11 Shell

111 First side

1111 groove

1112 opening

112 Second side

113 The third side

114 Ears

12 First speaker piece

13 Sound guide plate

14 Second speaker

15 locking member

151 piercing

20 subjects

21 First side

22 second side

30 display screen

detailed description

Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:

Please refer to Fig. 1 to Fig. 3, Fig. 1 is the perspective view of the structure of the sound source output device according to one embodiment of the present invention, Fig. 2 is the structural partial exploded view according to the sound source output device of Fig. 1, Fig. 3 is the sound source output according to Fig. 1 Structural side view of the device.

The sound source output device 10 of this embodiment includes a housing 11 , a first speaker 12 , a second speaker 14 and a sound guiding plate 13 .

The casing 11 has a first surface 111 and a third surface 113 opposite to each other, and a second surface 112 connected between the first surface 111 and the third surface 113 . The second surface 112 is substantially perpendicular to the first surface 111 and the third surface 113 , and the area of the first surface 111 is larger than that of the second surface 112 . Moreover, a groove 1111 is recessed inwardly from the first surface 111 , and the groove 1111 further has an opening 1112 located on the second surface 112 .

The first speaker 12 is a circular horn, and the first speaker 12 is disposed in the groove 1111 on the first surface 111 . The first speaker 12 faces a first direction d1, and the first direction d1 may substantially face the same direction as the normal vector of the first surface 111 . The above-mentioned so-called direction of the first speaker 12 may particularly refer to the extension direction of the central axis of the first speaker 12 toward the outside of the casing 11 . Since the first speaker 12 is a circular horn, the length of the horizontal axis of the profile of the first speaker 12 is the same as the length of the longitudinal axis, so that the sound emitted by the first speaker 12 can have a more average amplitude and No distortion. In addition, since the circular speaker has a larger vibrating area, the low frequency extension and sound pressure of the first speaker 12 are relatively good, so that it can be used as a full range frequency speaker of the audio source output device 10 .

The second speaker 14 is disposed on the second surface 112 of the casing 11 , and the second speaker 14 faces a second direction d2. The second direction d2 may be substantially in the same direction as the normal vector of the second surface 112 , so the second direction d2 may be substantially perpendicular to the first direction d1 . The above-mentioned so-called direction of the second speaker 14 may particularly refer to the extension direction of the central axis of the second speaker 14 toward the outside of the casing 11 . The second speaker 14 can be a horn of various shapes, and the volume of the first speaker 12 is greater than the volume of the second speaker 14, that is, the vibration area of the second speaker 14 is larger than that of the first speaker. 12 is small, so that the second speaker 14 is used as a high frequency speaker (high frequency speaker) of the sound source output device 10 .

The sound guide plate 13 is a square plate body, and the material of the sound guide plate 13 can be metal material, but not limited thereto. The sound guiding plate 13 covers the groove 1111 , so that the sound guiding plate 13 is located above the first speaker 12 , and a predetermined distance D is maintained between the sound guiding plate 13 and the first speaker 12 . The predetermined distance D needs to be greater than a maximum stroke of the first speaker 12 , and the so-called maximum stroke of the first speaker 12 refers to the maximum amplitude of the first speaker 12 when vibrating.

Moreover, when the sound guiding plate 13 covers the groove 1111 , the sound guiding plate 13 does not close the opening 1112 of the groove 1111 , so that the opening 1112 is exposed outside and interposed between the sound guiding plate 13 and the casing 11 . The opening 1112 and the second speaker 14 face the same direction (ie, the second direction d2 ).

When the first sound speaker 12 vibrates and emits sound, the sound wave is blocked by the sound guide plate 13 and rebounded, and transmitted through the opening 1112 instead. In other words, the sound guide plate 13 converts the sound output direction of the first speaker 12 from the initial first direction d1 to the second direction d2, so that the final sound output direction of the first speaker 12 can be compared with the second speaker direction. The sounding directions of the sound pieces 14 are the same. In this way, the sound source output device 10 can present a better stereo sound effect. In addition, since the sound guiding plate 13 is a square plate, it can be beneficial to concentrate the sound waves of the first speaker 12 for reflection, so as to improve the quality of the sound source.

In addition, in this embodiment, a plurality of ear portions 114 may extend from the edge of the housing 11 of the audio output device 10 , and a plurality of locking members 15 may be combined with these ear portions 114 . These locking components 15 can respectively have a through hole 151 for a locking member (such as a screw) to pass through, so as to lock the audio output device 10 on various products. As for the actual application example of the sound source output device 10 applied to the product, it will be introduced later.

Please refer to FIG. 4 , which is a schematic structural diagram of an audio-video output device according to an embodiment of the present invention.

The audio output device 10 of the above-mentioned embodiment can be applied to an audio-visual output device 1 , and the audio-visual output device 1 can be a thin display, but not limited thereto.

The audio-visual output device 1 includes a main body 20 , a display screen 30 and the above-mentioned audio output device 10 . The main body 20 has a first side 21 and a second side 22 opposite to each other. The display screen 30 is located on the first side 21 . The casing 11 of the audio output device 10 is disposed on the main body 20 , and the third surface 113 of the casing 11 faces the second side 22 . The opening 1112 and the second speaker 14 are facing the second direction d2, and the second direction d2 is substantially downward. The final sound output direction of the first speaker 12 (ie, the direction of the opening 1112 ) can be the same as the sound output direction of the second speaker 14 , so that the audio-video output device 1 can present a better stereo sound effect.

According to the sound source output device of the above-mentioned embodiment and the audio-visual output device using the sound source output device, the first speaker part adopts a circular horn to have a larger vibration area to improve the quality of the low-frequency sound of the first speaker part and sound pressure. The use of the sound guide plate as a square plate is beneficial to concentrate the sound waves of the first speaker to improve the quality of the sound source. In addition, the sound guide plate is used to make the final sound output direction of the first speaker part and the sound output direction of the second speaker part the same, so as to obtain a better stereo sound effect.

Of course, the present invention can also have other various embodiments, and those skilled in the art can make various corresponding changes and deformations according to the present invention without departing from the spirit and essence of the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (7)

1. a kind of sound source output device, it is characterised in that be arranged inside a slim AV device, comprising：

One housing；

One first raises one's voice part, is a round speaker, and is arranged at the housing, and this first raises one's voice part towards a first direction；

One second raises one's voice part, is arranged at the housing, and towards being different from a second direction of the first direction；And

One leading note plate, is a square plate body, and is located at this and first raises one's voice on part, and keeps a pre- spacing with first part of raising one's voice From,

Wherein, this first raise one's voice part volume more than second volume for raising one's voice part,

The leading note plate covers this and first raises one's voice with an opening between part, and the leading note plate and the housing, and this second is raised one's voice part It is arranged at beside the minor face of the opening, the opening is towards the second direction.

2. sound source output device according to claim 1, it is characterised in that the preset distance first is raised one's voice more than or equal to this One loudspeaker maximum stroke of part.

3. sound source output device according to claim 1, it is characterised in that the first direction is orthogonal with the second direction.

4. sound source output device according to claim 1, it is characterised in that the housing has adjacent one first face and Second face, first has a groove from this towards sunken inside, and with an opening positioned at second face, this first raises one's voice the groove Part is located in the groove, and the leading note plate covers the groove, and this second raises one's voice part positioned at second face.

5. a kind of slim video and audio output device, it is characterised in that include：

One main body, with one first relative side and one second side；

One display screen, positioned at first side；And

One sound source output device, comprising：

One housing, with one first relative face and one the 3rd face, and be connected between first face and the 3rd face Second face, the housing are arranged at the body interior, and the 3rd face towards second side；

One first raises one's voice part, is a round speaker, and is arranged at first face of the housing, and this first raises one's voice part towards one first Direction；

One second raises one's voice part, is arranged at second face of the housing, and towards being different from a second direction of the first direction；With And

One leading note plate, is a square plate body, and is located at this and first raises one's voice on part, and keeps a pre- spacing with first part of raising one's voice From,

Wherein, this first raise one's voice part volume more than second volume for raising one's voice part,

First face has a groove, and this first raises one's voice part in the groove, and the leading note plate covers the groove, and the leading note With an opening between plate and the housing, second part of raising one's voice is arranged at beside the minor face of the opening, the opening towards this second Direction.

6. video and audio output device according to claim 5, it is characterised in that the preset distance first is raised one's voice more than or equal to this One loudspeaker maximum stroke of part.

7. video and audio output device according to claim 5, it is characterised in that the first direction is orthogonal with the second direction.