CN202662547U

CN202662547U - Exhaust station of electrodeless lamp

Info

Publication number: CN202662547U
Application number: CN 201220342483
Authority: CN
Inventors: 张新华; 张若煜
Original assignee: University of Shaoxing
Current assignee: University of Shaoxing
Priority date: 2012-07-16
Filing date: 2012-07-16
Publication date: 2013-01-09
Anticipated expiration: 2022-07-16

Abstract

The utility model mainly discloses an exhaust station of an electrodeless lamp, comprising a mechanical pump, a diffusion pump, a cold trap, a vacuum pipeline and exhaust nozzles. The vacuum pipeline is connected with the mechanical pump and the diffusion pump respectively, the exhaust nozzles used for electrodeless lamp exhaust are installed on the vacuum pipeline, and the diffusion pump is connected with the vacuum pump through the cold trap. The exhaust station has simple structure, is precise to control inflation pressure and convenient to operate, and meets production requirements of the electrodeless lamp.

Description

A kind of Non-polarized lamp exhaust station

Technical field

The utility model relates to equipment technical field involved in the Non-polarized lamp production technology, and is special relevant with a kind of Non-polarized lamp exhaust station.

Background technology

Manufacture in the process at Non-polarized lamp, the amount of inert gas and working gas will directly have influence on luminous efficiency and the life-span in the Non-polarized lamp use in the vacuum degree that electrodeless lamp tube can reach and the fluorescent tube.Therefore, after the Non-polarized lamp docking, need to carry out pump-down process, realize by exhaust station.Existing exhaust station, vacuum-pumping system is unstable, and exhaust effect is not good, and it is serious easily to produce the anti-flow phenomenon of oil vapour, causes final Non-polarized lamp quality uneven, and product qualified rate is low.

The inventor has done research for the lamp source technology, designs a kind of Non-polarized lamp exhaust station, and this case produces thus.

The utility model content

Main purpose of the present utility model provides a kind of Non-polarized lamp exhaust station, and is simple in structure, and the control of inflation pressure is accurate, easy to operate, satisfies the production requirement of Non-polarized lamp.

In order to achieve the above object, the utility model is achieved through the following technical solutions:

A kind of Non-polarized lamp exhaust station comprises mechanical pump, diffusion pump, cold-trap, vacuum pipe, exhaust nozzle; Connect respectively mechanical pump and diffusion pump on the vacuum pipe, the exhaust nozzle for the exhaust of effect Non-polarized lamp is installed on the vacuum pipe; Wherein connect by cold-trap on the diffusion pump.

Described vacuum pipe comprises supervisor and from supervisor top set a plurality of arms out, connects exhaust nozzle on the arm.

The predominant tube diameter of described vacuum pipe is 30～50cm.

After the utility model adopted such scheme, mechanical pump was as fore pump in the utility model, and diffusion pump is as main vacuum pumping pump, and the adapted cold-trap prevents backflowing of oil vapour.In order to improve pumping speed, to reduce dead space, fully guaranteed short, thick and straight during the vacuum pipe design.After tested, the ultimate vacuum of this system is 5.2 * 10 ^-4Pa, base vacuum 2.3 * 10-3 Pa, under＜500 ℃ high-temperature baking, vacuum degree still can remain on 6～9 * 10 ^-3The Pa magnitude.

Description of drawings

Fig. 1 is the structural representation of the utility model preferred embodiment;

Fig. 2 is that Figure 1A is to schematic diagram.

Embodiment

By reference to the accompanying drawings, preferred embodiment is described in further details to the utility model.

A kind of Non-polarized lamp exhaust station comprises mechanical pump 1, diffusion pump 2, cold-trap 3, vacuum pipe 4, exhaust nozzle 5.

Vacuum pipe 4 mainly is divided into supervisor 41 and a plurality of arm 42, and supervisor 41 prime position connects mechanical pump 2, connects diffusion pump 4 on the position, intermediate portion, and in order to prevent backflowing of oil vapour, diffusion pump 4 at first is connected with vacuum pipe 4 by cold-trap 3.On the arm 42 of vacuum pipe 4, connect respectively exhaust nozzle 5.

In order to ensure improving pumping speed, reducing dead space, vacuum pipe 4 need to guarantee fully that pipeline is smooth and easy when design, therefore will be responsible for 41 diameter dimension and be arranged on 30～50cm, and reduce elbow as far as possible, guarantees short, thick and straight requirement.

Above-described embodiment only is used for explaining inventive concept of the present utility model, but not to the restriction of the utility model rights protection, allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should fall into protection range of the present utility model.

Claims

1. a Non-polarized lamp exhaust station is characterized in that: comprise mechanical pump, diffusion pump, cold-trap, vacuum pipe, exhaust nozzle; Connect respectively mechanical pump and diffusion pump on the vacuum pipe, the exhaust nozzle for the exhaust of effect Non-polarized lamp is installed on the vacuum pipe; Wherein connect by cold-trap on the diffusion pump.

2. a kind of Non-polarized lamp exhaust station as claimed in claim 1 is characterized in that: described vacuum pipe comprises supervisor and from supervisor top set a plurality of arms out, connects exhaust nozzle on the arm.

3. a kind of Non-polarized lamp exhaust station as claimed in claim 2, it is characterized in that: the predominant tube diameter of described vacuum pipe is 30～50cm.