CN201673884U

CN201673884U - High-efficiency energy-saving device for manufacturing cold-cathode lamp

Info

Publication number: CN201673884U
Application number: CN201020189906XU
Authority: CN
Inventors: 陈天喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-05-14
Filing date: 2010-05-14
Publication date: 2010-12-15
Anticipated expiration: 2020-05-14

Abstract

The utility model provides a high-efficiency energy-saving device for manufacturing a cold-cathode lamp, comprising a mechanical pump, a diffusion pump, an electric stove, a water tank, a water pump, a cooler, a joint pipe support and eight valves which are connected by pipelines, wherein high vacuum is obtained through the mechanical pump and the diffusion pump between which a full-automatic adjustment two-way valve is arranged. The device needs only one mechanical pump and one diffusion pump, thereby simplifying the structure thereof, achieving the purpose of reducing energy consumption and leading the luminous efficiency of the cold-cathode lamp to be higher. Besides, the valve connected between the mechanical pump and the diffusion pump is the full-automatic adjustment two-way valve the open/close state of which can be automatically changed without manual operation in the working procedure of air suction, therefore, the high-efficiency energy-saving device for manufacturing cold-cathode lamp has capabilities of effectively preventing air leakage, increasing the rate and the efficiency of air suction, further ensuring the obtaining of high vacuum, effectively increasing the vacuum degree and the luminous efficiency of the cold-cathode lamp and prolonging the service life of the cold-cathode lamp.

Description

The manufacturing installation of energy-efficient cold cathode lamp

Technical field

The utility model relates to the cold cathode lamp manufacturing technology, is specifically related to the manufacturing installation of energy-efficient cold cathode lamp.

Background technology

Exhaust and inflation are most important links in the cold cathode fluorescent lamp manufacturing process flow, directly affect the quality and the life-span of fluorescent tube.Whole exhaust and gas replenishment process need to be undertaken by certain operation on isolated plant.In order to obtain stable discharge, need before inflation, system to be evacuated to certain vacuum degree, charge into specific discharge gas then.In the exhaust process, mechanical pump and diffusion pump are the capital equipments that obtains vacuum.In the cold-cathode tube manufacture process, usually adopt a mechanical pump that the gas in the pipeline is extracted into than low pressure separately, reach the forevacuum degree, and then with another group mutually mechanical pump and the diffusion pump of series connection, on the basis of forevacuum air pressure take out lower, thereby reach high vacuum or ultra high vacuum.This working method is owing to need use two mechanical pumps and a diffusion pump, and energy consumption is higher, and once can only make one when making cold cathode fluorescent lamp, can't satisfy batch production requirements.In addition, the valve that is connected in the prior art between mechanical pump and the diffusion pump often needs to change its open and-shut mode in the operation of bleeding, the general piston type two-way valve that adopts in the prior art, want manual operations, waste time and energy, and be easy to gas leakage, reduce vacuum degree of bleeding and the speed of bleeding, thereby reduce the quality of cold cathode lamp.

The content of utility model

At the above-mentioned deficiency of the manufacturing installation of existing cold cathode lamp, the applicant improves through research, and the manufacturing installation of another kind of energy-efficient cold cathode lamp is provided, can energy efficient, enhance productivity and the quality of cold cathode lamp.

The technical solution of the utility model is as follows:

A kind of manufacturing installation of energy-efficient cold cathode lamp comprises mechanical pump, the diffusion pump that is connected by pipeline and adds electrothermal stove, water tank, water pump, cooler, junction block and each valve; Mechanical pump, diffusion pump are connected with junction block through first valve, second valve by pipeline respectively, and junction block is communicated with atmosphere through the 3rd valve by pipeline; The 6th valve and the 5th valve are connected by pipeline, and an end of the 6th valve is connected with junction block by pipeline, and the other end of the 5th valve is connected with the neon input by pipeline; The 8th valve and the 7th valve are connected by pipeline, and an end of the 8th valve is connected by pipeline with junction block, and the other end of the 7th valve is connected with the argon gas input; Water pump is installed in the water tank and is connected with the input in the cooling water path of diffusion pump, and the output in the cooling water path of diffusion pump is connected with water tank by cooler, diffusion pump by pipeline on the 4th valve is connected in pipeline between the mechanical pump and first valve.

Its further technical scheme is: described junction block is connected with rubber ball through the 3rd valve.

Its further technical scheme is: described the 4th valve is the full-automatic regulation bidirectional valve, pipe and outer tube in it comprises, and the two ends of outer tube are open-minded, and the outer wall at place, interior pipe two ends becomes movable sealing to contact with the inwall at place, outer tube two ends; In glass marble is set between pipe and the outer tube, a side of glass marble is connected with outer tube, opposite side and in guarantee and hold the gap.

Its further technical scheme is: pipe closed at both ends in described.

Useful technique effect of the present utility model is:

The utility model only needs a mechanical pump and a diffusion pump, makes simplified, and reaches the purpose of energy efficient, and the luminous efficiency of cold cathode lamp is higher.The valve that is connected in addition between mechanical pump and the diffusion pump is the full-automatic regulation bidirectional valve; in the operation of bleeding, can change its open and-shut mode automatically; do not need manual operations; and can effectively avoid gas leakage; the speed and the efficient of bleeding have been improved; further guarantee to obtain high vacuum, effectively improve vacuum degree, luminous efficiency and the life-span of cold cathode lamp.And can be simultaneously to 6 long 1.5m, the fluorescent tube of diameter 12mm is bled, and has improved fluorescent tube production efficiency.

Description of drawings

Fig. 1 is the utility model schematic representation of apparatus.

In the above-mentioned accompanying drawing: 1, mechanical pump, 2, diffusion pump, 3, electric furnace, 4, water tank, 5, water pump, 6, cooler, 7, rubber ball, 8, junction block, 9～16, valve.

Fig. 2 is the sectional structure chart of the 4th valve.

Embodiment

Below in conjunction with accompanying drawing, the utility model is specifically described by embodiment.

As shown in Figure 1, structure of the present utility model is as follows: comprise mechanical pump 1, the diffusion pump 2 that is connected by pipeline and add electrothermal stove 3, water tank 4, water pump 5, cooler 6, junction block 8 and each valve 9～16.Mechanical pump 1, diffusion pump 2 are connected with junction block 8 through first valve 9, second valve 10 by pipeline respectively, junction block 8 is connected with rubber ball 7 through the 3rd valve 11, junction block 8 also can directly be communicated with atmosphere through the 3rd valve 11 by pipeline in addition, and does not adopt rubber ball 7; The 6th valve 12 and the 5th valve 13 are by the pipeline series connection, and an end of the 6th valve 12 is connected with junction block 8 by pipeline, and the other end of the 5th valve 13 is connected with the neon input by pipeline; The 8th valve 14 and the 7th valve 15 be by pipeline series connection, and an end of the 8th valve 14 and junction block 8 are connected by pipeline, and the other end of the 7th valve 15 is connected with the argon gas input; Water pump 5 is installed in the water tank 4 and is connected with the input in the cooling water path of diffusion pump 2, the output in the cooling water path of diffusion pump 2 is connected with water tank 4 by cooler 6, diffusion pump 2 by pipeline on the 4th valve 16 is connected in pipeline between the mechanical pump 1 and first valve 9.

As shown in Figure 2, the 4th valve 16 is the full-automatic regulation bidirectional valve, pipe 201 and outer tube 202 in it comprises, and the two ends of outer tube 202 are open-minded, interior pipe 201 closed at both ends; The outer wall at place, interior pipe 201 two ends becomes movable sealing to contact with the inwall at place, outer tube 202 two ends; Between interior pipe 201 and the outer tube 202 glass marble 203 is set, a side of glass marble 203 is connected with outer tube 202, and opposite side and interior pipe 201 keep gaps, and the size in this gap is several silks.

Below in conjunction with Fig. 1, specify employing as described in Figure 1 device make the manufacture method of energy-efficient cold cathode lamp, its concrete steps are as follows:

(1) closes first valve 9, second valve 10, the 3rd valve 11, the 4th valve 16 is in opening, open mechanical pump 1, air in emptying diffusion pump 2 and the pipe-line system, open the water pump 5 that is connected with diffusion pump after 30 minutes, when treating in the diffusion pump 2 pinkiness, that opens diffusion pump adds electrothermal stove 3, keeps 30 minutes; Diffusion pump 2 is the silicone oil diffusion pump, and the heating-up temperature of diffusion pump silicone oil is 150～180 degrees centigrade.

(2) assemble the fluorescent tube heating of cold cathode and be connected on the junction block 8 to be processed, open the 3rd valve 11, in the fluorescent tube of described cold cathode lamp, inflate, close the 3rd valve 11 then with rubber ball 7, and the power supply of connection cold cathode fluorescent lamp;

(3) open first valve 9, separately the fluorescent tube of cold cathode lamp was vacuumized 2～3 minutes, obtain the forevacuum state, make the vacuum degree of fluorescent tube reach 10-2 with mechanical pump;

(4) open second valve 10, simultaneously the fluorescent tube of cold cathode lamp was vacuumized 2～3 minutes, obtain high vacuum state with the mechanical pump 1 and the diffusion pump 2 of connecting;

(5) close second valve 10 and the 4th valve 16, open the 3rd valve 11, the fluorescent tube of cold cathode lamp is carried out atmosphere clean;

(6) close the 3rd valve 11, open second valve 10 and the 4th valve 16, simultaneously the fluorescent tube of cold cathode lamp is vacuumized, make the fluorescent tube vacuum degree of cold cathode lamp reach 10-2.8～10-4 with the mechanical pump 1 and the diffusion pump 2 of connecting; And it is colourless that spark tester detects fluorescent tube;

(7) close valve first valve 9 and second valve 10, in the fluorescent tube of cold cathode lamp, charge into neon or argon gas.When charging into neon or argon gas, at first open and be installed on the 5th valve 13 of neon source near-end or the 7th valve 15 of argon gas source near-end, and close immediately; Open then and be installed on the 6th valve 12 of neon source far-end or the 8th valve 14 of argon gas source far-end, and close immediately.

(8) heating of the fluorescent tube of cold cathode lamp is sealed and separate from junction block 8;

(9) open the 3rd valve 11, close electric furnace 3, keep the 4th valve 16 to be in opening, close mechanical pump 1 and water pump 5 after 40 minutes.

In the present embodiment, mechanical pump 1 and diffusion pump 2 are the commercial goods.

The 4th valve 16 that is connected between mechanical pump 1 and the diffusion pump 2 is a full-automatic regulation bidirectional valve, and the outer wall at place, interior pipe 201 two ends becomes movable sealing to contact in the switching process of the 4th valve 16 with the inwall at place, outer tube 202 two ends.According to the difference that is subjected to gas pressure, pipe 201 moves up and down in outer tube 202 in it, changes open and-shut mode automatically in the operation of bleeding.And the distance between glass marble 203 and the interior pipe 201 is several silks, and the move up and down strict direction of axis line by outer tube 203 of pipe 201 in outer tube 203 carries out in making, the switching process sealing of the 4th valve 16 is good.Vacuum degree, luminous efficiency and the life-span of cold cathode lamp have effectively been improved.

Above-described only is preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that those skilled in the art under the prerequisite that does not break away from spirit of the present utility model and design, can make other improvement and variation.

Claims

1. the manufacturing installation of an energy-efficient cold cathode lamp comprises mechanical pump (1), the diffusion pump (2) that is connected by pipeline and adds electrothermal stove (3), water tank (4), water pump (5), cooler (6), junction block (8) and each valve (9～16); It is characterized in that: mechanical pump (1), diffusion pump (2) are connected with junction block (8) through first valve (9), second valve (10) by pipeline respectively, and junction block (8) is communicated with atmosphere through the 3rd valve (11) by pipeline; The 6th valve (12) and the 5th valve (13) are by the pipeline series connection, and an end of the 6th valve (12) is connected with junction block (8) by pipeline, and the other end of the 5th valve (13) is connected with the neon input by pipeline; The 8th valve (14) and the 7th valve (15) are by the pipeline series connection, and an end of the 8th valve (14) is connected by pipeline with junction block (8), and the other end of the 7th valve (15) is connected with the argon gas input; Water pump (5) is installed in the water tank (4) and is connected with the input in the cooling water path of diffusion pump (2), the output in the cooling water path of diffusion pump (2) is connected with water tank (4) by cooler (6), diffusion pump (2) by pipeline on the 4th valve (16) is connected in pipeline between mechanical pump (1) and first valve (9).

2. according to the manufacturing installation of the described energy-efficient cold cathode lamp of claim 1, it is characterized in that: described junction block (8) is connected with rubber ball (7) through the 3rd valve (11).

3. according to the manufacturing installation of the described energy-efficient cold cathode lamp of claim 1, it is characterized in that: described the 4th valve (16) is the full-automatic regulation bidirectional valve, it comprises interior pipe (201) and outer tube (202), the two ends of outer tube (202) are open-minded, and the outer wall at place, interior pipe (201) two ends becomes movable sealing to contact with the inwall at place, outer tube (202) two ends; Between interior pipe (201) and the outer tube (202) glass marble (203) is set, a side of glass marble (203) is connected with outer tube (202), and opposite side and interior pipe (201) keep the gap.

4. according to the manufacturing installation of the described energy-efficient cold cathode lamp of claim 3, it is characterized in that described interior pipe (201) closed at both ends.