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TV with Antenna Isolator

A technology of TV sets and isolators, applied in the field of TV sets, can solve the problems of low batch production efficiency, poor product consistency, unfavorable TV sets, etc., and achieve high batch production efficiency, low cost, and good shielding effect

Active Publication Date: 2015-10-28
JIANGSU HUAXING ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The shortcomings of the above-mentioned prior art are: the connection between the circuit board and each capacitor adopts manual welding, the batch production efficiency is low and the cost is high, and manual welding easily leads to poor product consistency; the product is large in size, which is not conducive to direct installation in the tv

Method used

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  • TV with Antenna Isolator

Examples

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Effect test

Embodiment 1

[0028] Such as figure 1 , the TV set of the present embodiment includes a tuner assembly, and the tuner assembly includes: an outer shield 2, a tuner unit circuit 10 located in the outer shield 2; the tuner unit circuit 10 The signal input end is connected to the signal output end of an antenna isolator; the antenna isolator includes: a large and a small shielding case with oppositely arranged opening ends, and the opening end of the small shielding case 5 extends into the opening of the large shielding case 3; The outer side of the small shielding case 5 is provided with a shielding layer joint 9, and a core wire joint 6 distributed with a coaxial line is fixed inside the shielding layer joint 9, and the rear port of the large shielding case 3 is connected with the front opening of the outer shielding case 2; There are 4, 5 or 6 ground wire DC blocking capacitors 8 and a signal DC blocking capacitor 1 in the large and small shielding covers; a plurality of through holes are s...

Embodiment 2

[0034]The production method of the antenna isolator in the TV tuner assembly of above-mentioned embodiment 1, it comprises the steps:

[0035] A. Fix solder paste on the two electrodes of each capacitor, or on the large and small shields;

[0036] B. The core wire joint is fixed in the shielding layer joint through the insulating block 11, and at the same time, the inner side end of the shielding layer joint is fixedly fitted in the installation hole of the large shielding case or the small shielding case;

[0037] C. Set the large and small shields horizontally opposite each other, and set the shield connector downwards (to use the self-gravity of the signal DC blocking capacitor 1 to contact the solder paste 4 at the bottom to ensure the implementation of reflow soldering), and DC blocking capacitors for each line are respectively arranged between multiple sets of opposite through holes on the large and small shielding covers, and the signal DC blocking capacitors are arrang...

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Abstract

The invention relates to a television which comprises a tuner assembly. The tuner assembly comprises a tuner unit circuit and the antenna isolator connected with a signal input end of the tuner unit circuit; the tuner unit circuit is arranged in an outer shielding case; and the antenna isolator comprises a pair of shielding cases, opening ends of the shielding cases are opposite to each other to form a shielding cavity, a shielding layer connector is arranged on the outer side of one of the shielding cases, and a rear port of the other shielding case is connected with an opening of the front end of the outer shielding case. The television has the advantages that the antenna isolator in the tuner assembly is provided with capacitors which are leadless capacitors or chip capacitors, the television is low in line loss, high-frequency characteristics of transmitted signals can be guaranteed, reflow soldering can be implemented beneficially, manual soldering is omitted, the television is suitable for batch production, and effects of high batch production efficiency, low cost and good consistency of products are realized.

Description

technical field [0001] The invention relates to the technical field of television sets, in particular to a television set with an antenna isolator which is suitable for preventing damage when an external television signal cable is struck by lightning or short-circuited with an external power line. At the same time, the antenna isolator is used to ensure the transmission quality of high-frequency signals. Background technique [0002] The TV includes a tuner (commonly known as a tuner), which is a device used by the TV to receive high-frequency signals and demodulate video information. The existing tuners are generally divided into digital signal tuners (referred to as digital high-frequency Head) and analog signal high-frequency head (abbreviated as analog high-frequency head). [0003] The function of the digital high-frequency head is to receive digital TV high-frequency signals, and perform channel selection, high-frequency signal amplification and frequency conversion p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/44H04N5/50H04N7/10H04N21/426
Inventor 徐志明李明锁
Owner JIANGSU HUAXING ELECTRONICS CO LTD
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