CN204855120U

CN204855120U - A detection mechanism for detecting whether sealed package body leaks gas

Info

Publication number: CN204855120U
Application number: CN201520610957.8U
Authority: CN
Inventors: 叶宏成
Original assignee: SHENZHEN FUKANG INDUSTRIAL Co Ltd
Current assignee: SHENZHEN FUKANG INDUSTRIAL Co Ltd
Priority date: 2015-08-14
Filing date: 2015-08-14
Publication date: 2015-12-09
Anticipated expiration: 2025-08-14

Abstract

The utility model provides a detection mechanism for detecting whether sealed package body leaks gas that is with low costs, just whether ability short -term test packing body product gas tightness is good for simple structure. Including the evacuation subassembly, wherein still be equipped with by await measuring product and for the chamber of leaking hunting of closed, personally experience sth. Part of the body through a leak hunting pipe and air exhaust cavity and meets in the chamber of should leaking hunting of placing of constituting of last mould and bed die, the air exhaust cavity body with the evacuation subassembly is connected still has connect the vacuum detector on the leak hunting pipe, has compared with prior art, the utility model discloses a detection mechanism that the simpler and easy chamber of leaking hunting, the air exhaust cavity body and evacuation subassembly that comprises last mould, bed die and vacuum detector are constituteed can ensure under the not impaired condition of electronic component, and whether the accuracy to pack gas tightness physically good if detecting out this electronic component. And the investment cost of this mechanism is low, easy, and the operation just detects fastly.

Description

For detecting the testing agency whether sealed packaging leaks gas

Technical field

The utility model relates to a kind of gas device for detecting leakage, particularly a kind of for detecting the detection machine whether package body product leaks gas.

Background technology

Electronic component needs to adopt the mode sealing or vacuumize to pack it based on moistureproof, anticorrosion object when dispatching from the factory, and the quality of packaging can have influence on the time limit of depositing of this electronic component, if storage environment is bad also can affect its serviceable life.

In practical operation, after electronic component packages, all need the impermeability verifying whole package body whether good, or whether vacuum seal performance is good.

Usually verify by the following method: whole packaging product is steeped in hot water, looked into by artificial sight, see if there is bubble and produce, when there being bubble to produce, then illustrating that packaging imprecision has leakage point, have water to infiltrate in package body in hot water and air is wherein driven out of.

The shortcoming of this kind of method is, if when the package body impermeability of product to be detected is bad, and the product that the water entered in package body by leakage point will directly damage wherein.

Summary of the invention

The technical problems to be solved in the utility model is to provide that a kind of cost is low, structure is simple and can detect fast package body products air tightness whether good for detecting the testing agency whether sealed packaging leaks gas.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

Of the present utility model for detecting the testing agency whether sealed packaging leaks gas, comprise and vacuumize assembly, also be provided with the placement be made up of mold and bed die product to be measured wherein and be the chamber of leaking hunting of closed, this chamber of leaking hunting is connected with cavity of bleeding by a leak detection tube, described cavity of bleeding is connected with the described assembly that vacuumizes, and described leak detection tube is also connected to vacuum inspective meter.

Described chamber and the described volumetric ratio of bleeding in cavity of leaking hunting is 1:3-1:5.

The described assembly that vacuumizes is for vacuumizing cylinder or mechanical vacuum pump.

Described vacuum inspective meter is a vacuum transducer.

Compared with prior art, the utility model adopt more easy be made up of mold, bed die chamber of leaking hunting, the cavity and vacuumize the testing agency that assembly and vacuum inspective meter form of bleeding, can guarantee, in the not impaired situation of electronic component, accurately to detect that whether the impermeability of this electronic component package body is good.And this institutional investment cost is low, be easy to operation and detection speed is fast.

Accompanying drawing explanation

Fig. 1 is structural scheme of mechanism of the present utility model.

Fig. 2 is contrast schematic diagram before and after mechanism of the present utility model performs.

Reference numeral is as follows:

Mold 1, bed die 2, chamber 3 of leaking hunting, cavity 4 of bleeding, vacuumize the volume V2 in assembly 5, leak detection tube 6, vacuum inspective meter 7, product to be measured 8, matched moulds cylinder 9, the volume V1 leaked hunting in chamber, product to be measured 8 package body, the volume V3 bled in cavity.

Embodiment

As shown in Figure 1, 2, testing agency of whether leaking gas for detecting sealed packaging of the present utility model is a simple and easy leak checking mechanism, and its seal (entirety after namely being packaged by electronic component) be mainly applicable to electronic component package body carries out the detection of impermeability quality.

It is primarily of placing chamber 3 of leaking hunting of electronic component package body (also known as product 8 to be measured), can changing the cavity 4 and vacuumize assembly 5 and form of bleeding of air chamber volume of air.

Chamber 3 of leaking hunting is formed by after mold 1 and the 2-in-1 mould of bed die, mold 1 is connected with the matched moulds cylinder 9 that mold 1 can be made to move up and down, inner chamber after mold 1 and the 2-in-1 mould of bed die is described chamber 3 of leaking hunting, be provided with hermetically-sealed construction in mold 1 and bed die 2 connecting part, described electronic component package body can be placed on this and leak hunting in chamber 3.

Described cavity 4 of bleeding is the cavity that a sealing is arranged, this cavity respectively with vacuumize assembly 5 and be connected with leak detection tube 6, the assembly 5 that vacuumizes of the present utility model preferably vacuumizes cylinder or mechanical vacuum pump, and when vacuumizing assembly 5 and working, this atmospheric density of bleeding in cavity 4 declines.Described chamber 3 of leaking hunting is 1:3-1:5 with described volumetric ratio of bleeding in cavity 4.

Also be connected with a leak detection tube 6 described leak hunting chamber 3 and described bleeding between cavity 4, leak hunting respectively chamber 3 and cavity 4 of bleeding of this leak detection tube 6 communicates.

Described leak detection tube 6 is also connected to the atmospheric density in the confined space that can detect and be made up of chamber 3 of leaking hunting, leak detection tube 6 passage and cavity 4 of bleeding vacuum inspective meter 7 (the utility model preferably described in vacuumize assembly 5 for vacuumizing cylinder or mechanical vacuum pump, described vacuum inspective meter 7 is vacuum transducer).

Described chamber 3 of leaking hunting is rigid structure with the structure of cavity 4 of bleeding.

Principle of work of the present utility model:

1) described product 8 to be measured is put into chamber 3 of leaking hunting, start matched moulds matched moulds cylinder 9 by mold 1 and the 2-in-1 mould of bed die, form airtight chamber 3 of leaking hunting.

2) start vacuumize assembly 5 make described in bleed atmospheric density in cavity 4 reduce, be namely less than atmospheric negative pressure at mineralization pressure in cavity 4 of bleeding.

The utility model volume V3 preferably bled in cavity 4 is 3-5 times of the volume V1 leaked hunting in chamber 3.

3) judge:

If be connected to the vacuum transducer leaked hunting on pipe read to be worth constant at the appointed time and for according to bleeding actual volume in cavity 4 volume, chamber 3 of leaking hunting and vacuumize the preset value calculation regime values out of assembly 5, then illustrate that the air in product 8 to be measured does not have leakage phenomenon to occur, prove that its impermeability is good;

If the reading to be worth of described vacuum transducer can not settle out very soon at the appointed time and it reads value higher than described regime values, then illustrate that product 8 impermeability to be measured has problem.

Claims

1. one kind for detecting the testing agency whether sealed packaging leaks gas, comprise and vacuumize assembly (5), it is characterized in that: be also provided with the placement product to be measured (8) that is made up of mold (1) and bed die (2) wherein and be the chamber of leaking hunting (3) of closed, this chamber of leaking hunting (3) is connected with cavity of bleeding (4) by a leak detection tube (6), described cavity of bleeding (4) is connected with the described assembly (5) that vacuumizes, and described leak detection tube (6) is also connected to vacuum inspective meter (7).

2. according to claim 1 for detecting the testing agency whether sealed packaging leaks gas, it is characterized in that: described in the volumetric ratio of leaking hunting in chamber (3) and described cavity of bleeding (4) be 1:3-1:5.

3. according to claim 1 and 2 for detecting the testing agency whether sealed packaging leaks gas, it is characterized in that: described in vacuumize assembly (5) for vacuumizing cylinder or mechanical vacuum pump.

4. according to claim 3 for detecting the testing agency whether sealed packaging leaks gas, it is characterized in that: described vacuum inspective meter (7) is a vacuum transducer.