CN101459798A

CN101459798A - Telecvision picture receiver

Info

Publication number: CN101459798A
Application number: CNA2008101765607A
Authority: CN
Inventors: 向出雅真; 冈田浩史
Original assignee: Sanyo Electric Co Ltd
Current assignee: Sanyo Electric Co Ltd
Priority date: 2007-12-12
Filing date: 2008-11-19
Publication date: 2009-06-17
Anticipated expiration: 2028-11-19
Also published as: JP2009147475A; CN101459798B; JP5260950B2

Abstract

The invention provides a television picture receiver capable of preventing the thermal damage of liquid crystal panel and loudspeaker and making the device thin. In addition, the television picture receiver makes the user easily hear the sound with narrower directionality. The television picture receiver comprises a sound box (5) outputting the sound in a chassis (2), and a substrate (8) as heating body. The sound box (5) is set at the side direction of the substrate (8) and offsets the heat movement path from the substrate (8). Thus the sound box (5) is prevented from being damaged by the heat from the substrate (8). The sound box (5) is used for outputting the low frequency stage sound. Loudspeakers (6,6) for outputting the high-middle frequency are set on the front surface of the chassis(2).

Description

Telecvision picture receiver

Technical field

The present invention relates to possess the telecvision picture receiver of speaker unit.

Background technology

In the past, known have a telecvision picture receiver that possesses speaker unit.The applicant has also proposed disclosed telecvision picture receiver 1 (with reference to Patent Document 1) among Fig. 5.It relates to the telecvision picture receiver that possesses slim liquid crystal panel, is provided with the

speaker unit

90,90 of tubular on the two sides of the teat 9 at the back side of being located at casing 2.All sound of lower frequency region, frequency domain, high-frequency domain are exported from the upper end or the lower end of

speaker unit

90,90.

[Patent Document 1] spy opens the 2007-235283 communique

This telecvision picture receiver requires slimming more, and in telecvision picture receiver shown in Figure 51, the amount of thickness and teat 9 has correspondingly produced increase.Thereby, if speaker unit 90 is received in the casing 2, then can help slimming.But,, then can not guarantee enough tonequality, volume if make speaker unit 90 attenuation.

In addition, take in the backlight conversion converter circuit substrate of power supply with substrate and liquid crystal panel in casing 2, because of the heat of sending from these substrates, this substrate itself, liquid crystal panel and speaker unit 90 may be subjected to fire damage.Particularly, speaker unit 90 is big, if take the large-area words in the casing 2, then becomes the reason of obstruction from casing (2) heat radiation.

In addition, general sound in the low-frequency range of frequency band, because its wavelength is long a little less than the directive property, the directive property grow along with becoming high band.Thereby, the high Mid Frequency that directive property is narrow sound also need be before being in casing 2 look hearer's output.

Summary of the invention

The objective of the invention is in the fire damage that prevents substrate, liquid crystal panel and speaker unit, to make the whole slimming of device.With it consistently, also will look the hearer and hear that easily the narrow sound of directive property is as purpose.

Telecvision picture receiver 1 is taken in the audio amplifier 5 of output sound and as the substrate 8 of heater in casing 2.Audio amplifier 5 is positioned at the side of substrate 8, and departs from the mobile route ground outfit from the heat of substrate 8.

Audio amplifier 5 is used for the low-frequency range voice output, is provided with the

loud speaker

6,6 of high Mid Frequency output usefulness on the front surface of casing 2.

The invention effect

1, audio amplifier 5 is accommodated in the casing 2, can make the whole slimming of telecvision picture receiver.

The circuit substrate as heater in the casing 2 is positioned at the side of audio amplifier 5, and audio amplifier 5 departs from the mobile route from the heat of substrate, can not hinder from circuit substrate and dispel the heat.Thus, prevent liquid crystal panel, substrate and audio amplifier 5 be subjected to the possibility of fire damage in, can make audio amplifier 5 become big as far as possible, and guarantee high tone quality, louder volume.

2, from being accommodated in the more weak low-frequency range sound of audio amplifier 5 output directive property in the casing 2, the sound of the high Mid Frequency that loud speaker 6, the 6 output directive property from the front surface that is located at casing 2 are sharp-pointed.Thus, the sound of all frequency ranges is arrived expeditiously and look the hearer.

Description of drawings

Fig. 1 is the stereogram of relevant this routine telecvision picture receiver.

Fig. 2 is its front view.

Fig. 3 is the rearview of the internal structure of expression casing.

Fig. 4 is the exploded perspective view of Fig. 3.

Fig. 5 is the stereogram of the telecvision picture receiver of prior art;

Description of symbols

The 1-telecvision picture receiver; The 2-casing; The 3-display floater; The 4-lid; The 5-audio amplifier; The 6-loud speaker; The 7-circuit substrate

Embodiment

Below, utilize accompanying drawing to describe one embodiment of the invention in detail.

Fig. 1 is the stereogram of relevant this routine telecvision picture receiver 1, and Fig. 2 is its front view.In following record, will incite somebody to action in the other direction as the rear towards the direction of looking the hearer as the place ahead.It is about the slim TV image receiver that uses liquid crystal panel, in the bottom of casing 2, is provided with the

loud speaker

6,6 that high Mid Frequency sound is used in positive both sides.

Loud speaker

6,6 is owing to look the hearer opposed, look the hearer so the sound of high Mid Frequency arrives easily.

Casing 2 be as the display floater 3 of liquid crystal panel cooperate the lid 4 of taking in circuit substrate on the chimeric framework 20 and constitute.The terminal group of outside input etc. is exposed from the side of lid 4.

Fig. 3 is the rearview of the internal structure of expression casing 2, and Fig. 4 is the exploded perspective view of Fig. 3.For convenience of explanation, in Fig. 3, lid 4 is removed and illustrated.Two

vertical poles

75,75 of mutual almost parallel are installed on the back side of display floater 3, are provided with circuit supporting plate 7 across two vertical poles 75,75.Circuit supporting plate 7 is metallic of iron etc., is formed with the 1st sheet material 70 at the back side that is roughly parallel to display floater 3 and the 2nd sheet material 71 that rearward extends from the right part bending of the 1st sheet material 70.Above-mentioned terminal group 10 is installed on the outer lateral side of the 2nd sheet material 71.

On the vertical pole 75 in the left side in

vertical pole

75,75, the audio amplifier 5 that low-frequency range is used is installed via the buffer unit (not shown) of sheet rubber etc.Audio amplifier 5 is casings of open cell type, and as known structure, the woofer 50 and the acoustic pressure that possess output low frequency section sound are regulated the port or the pipeline 51 of usefulness.It is that vibration when making low-frequency sound reproducing can not be directly passed to display floater 3 and circuit substrate described later that audio amplifier 5 is installed on the vertical pole 75 via buffer unit.

In this example, owing to audio amplifier 5 is accommodated in the casing 2, so can realize the slimming of telecvision picture receiver integral body.

Shown in single-point line among Fig. 3, on the 1st sheet material 70,, be provided with circuit substrate 8, particularly be power supply with substrate 80 and image processing with substrate 81 in the side of audio amplifier 5.Opposed and the almost parallel ground setting in the back side of two

substrates

80,81 and display floater 3.In addition, display floater 3 is shone by backlight (not shown) as known, but the converter circuit substrate 82 that this backlight is used is located at the left side side of audio amplifier 5.This converter circuit substrate 82 also is provided with the almost parallel ground, the back side of display floater 3.

Power supply generate heat with substrate 81, converter circuit substrate 82 in use with substrate 80, image processing, but should the heat rising and opening 40 from the upper end that is opened in lid 4 is released to the outside of casing 2.Audio amplifier 5 is provided in the side of

substrate

80,81,82, so do not hinder from

substrate

80,81,82 heat radiations.Thus, prevent that liquid crystal panel, substrate and audio amplifier 5 are subjected to the possibility of fire damage.Though the sound of audio amplifier 5 is from being opened in louver 41 output on the lid 4, as mentioned above, because the more weak low-frequency range sound of audio amplifier 5 output directive property, so this low-frequency range sound, arrives the hearer that looks in the place ahead of being positioned at casing 2 around the front to casing 2.

In this example, has following effect.

2, the circuit substrate as heater in the casing 2 is power supply is positioned at audio amplifier 5 with substrate 81, converter circuit substrate 82 with substrate 80, image processing side, audio amplifier 5 departs from the mobile route from the heat of

substrate

80,81,82, can not hinder from

substrate

80,81,82 heat radiations.Thus, prevent liquid crystal panel, substrate and audio amplifier 5 be subjected to the possibility of fire damage in, can make audio amplifier 5 become big as far as possible, and guarantee high tone quality, louder volume.

3, from being accommodated in the low-frequency range sound of the audio amplifier 5 output directive property broads in the casing 2, the sound of the high Mid Frequency that loud speaker 6, the 6 output directive property from the front that is located at casing 2 are sharp-pointed.Thus, the sound of all frequency ranges is arrived expeditiously and look the hearer.

The explanation of the foregoing description is to be used for illustrating of the present invention, should not be construed as limiting the described invention of claims or dwindles its scope.In addition, the structure of each one of the present invention is not limited to the foregoing description certainly, can carry out various distortion in the described technical scope of claims.

Claims

1, a kind of telecvision picture receiver, it is characterized in that, in casing (2), take in the audio amplifier (5) of output sound and as the substrate (8) of heater, audio amplifier (5) is positioned at the side of substrate (8), and the mobile route ground that departs from from the heat of substrate (8) is equipped with.

2, telecvision picture receiver as claimed in claim 1 is characterized in that, audio amplifier (5) is used for the low-frequency range voice output, on the front surface of casing (2), is provided with the loud speaker (6,6) of high Mid Frequency output usefulness.

3, telecvision picture receiver as claimed in claim 1 or 2 is characterized in that, is provided with display floater (3) on the front surface of casing (2), and substrate (8) is opposed and almost parallel ground outfit with display floater (3).

As each described telecvision picture receiver in the claim 1～3, it is characterized in that 4, display floater (3) is a liquid crystal panel.