CN2110325U

CN2110325U - Clean preservation and dust-remove deivce for t. v.

Info

Publication number: CN2110325U
Application number: CN 91231627
Authority: CN
Inventors: 希平涛
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-12-07
Filing date: 1991-12-07
Publication date: 1992-07-15

Abstract

The utility model relates to a clean preservation and dust-removal device for a TV. The utility model is composed of cathode rays, an anode plate, and a dust box, and is positioned at the air inlet hole of the bottom part in the TV. The earth wire of the cathode rays is arranged on a housing, the anode plate is connected with the high power of the high voltage and is positioned in the dust box. The space between the cathode rays and the anode plate is from 3 cm to 5 cm. The dust box can be movably drawn out of and pushed in the housing to clean the dust. The utility model is designed by the phenomenon of the electrostatic adsorption of the high voltage, the structure is simple, and the installation and the operation are convenient. The utility model can effectively filter the air dust more than 95%, which cleans the sanitation in the TV, and keeps the normal working performance of the machine member of the TV, and extends the service life of the TV.

Description

Clean preservation and dust-remove deivce for T. V.

The utility model belongs to the device that the interior dedusting of television set can keep cleaning in the machine.

At present, the television set of using in the society, its casing is equipped with air admission hole and louvre.During start, built-in temperature raises, from air admission hole to louvre via the turnover air-flow that has just formed reduction machine temperature in the machine.But owing to have many small dusts in the air, in machine under the high voltage electrostatic adsorption, its grit easily is adsorbed on around picture tube high voltage cap, the high voltage package and on the high pressure line.Simultaneously, each parts also has the dust suction effect because of variations in temperature in the machine, and dust of a specified duration is long-pending many, all can affect greatly the performance of each parts of television set and the video picture function of picture tube, even jeopardize the safety and the life-span of television set.

The utility model its objective is that design is a kind of can make the keep clean device of automatic dedusting of television set inside, with normal working performance that keeps each parts and the working life that improves television set.

Its technical scheme of the utility model is achieved in that its structure is to be made of cathode line, positive plate and dust box, is positioned at air inlet position at the bottom of the television cabin.The cathode line earth connection is contained on the casing, and positive plate connects the picture tube high voltage power supply and is positioned at the dust box, and cathode line and positive plate spacing are 3-5cm, and the dust box can move with dust out by passing in and out to shell in the shell.

Fig. 1: the utility model planform schematic diagram.

Be described in detail concrete structure content of the present utility model and operation principle in conjunction with the accompanying drawings below by embodiment:

Its structure content of the utility model is: be to be made of cathode line (5), positive plate (2) and dust box (1), be positioned at television set inner bottom part air admission hole (4) and locate.Cathode line (5) is long linear wire electrode, and earth connection is loaded on the casing (3), and cathode line also can adopt pellet electrode, needle electrode etc.Positive plate (2) is a long plate shape, is metal material and makes, and connects the picture tube high voltage power supply and is positioned at dust box (1).Cathode line (5) and positive plate (2) spacing remain between the 3-5cm, and dust box (1) can be by pulling out to shell in the shell and advancing, and cleaning is removed dust in the box.

Its operation principle of the utility model is: when start, under the high voltage electrostatic interaction, its cathode line (5) produces the polarization charge phenomenon because of having a large amount of negative electrical charges, make air molecule be ionized into a large amount of positive and negative ion, cation is attracted by electronegative wire electrode and neutralizes, and anion is attracted by positively charged positive plate (2).When anion is attracted in the process of motion, make the dust in the charge air flow also be with negative electrical charge, attracted by positive plate (2) positive charge and be condensed on the positive plate (2).Therefore, when the inherent charge air flow of television set constantly flows cooling, its dust will be constantly adsorbed by positive plate (2) also because of the effect that is subjected to high voltage static, thereby reach the hygiene in the machine.

The utility model is characterized in simplicity of design, and cost is low, has the preferred application effect. Effectively the filtering koniology to have reached hygiene in the machine, has kept the normal operation performance of television set parts unaffected, the service life of having improved television set more than 95%.

Claims

The dust cleaning apparatus of keeping a public place clean in a kind of television set, the structure that it is characterized in that it is to be made of cathode line (5), positive plate (2) and dust box (1), equipped be positioned at casing (3) inner bottom part air admission hole (4) and locate, cathode line (5) earth connection is contained on the casing (3), positive plate (2) is positioned at dust box (1), connects the picture tube high-voltage power supply, and cathode line (5) is 3-5cm with positive plate (2) spacing, dust box (1) can be by passing in and out dust out with the outer activity push-and-pull of shell in the shell.