CN201210480Y - Hot element type sucking component - Google Patents
Hot element type sucking component Download PDFInfo
- Publication number
- CN201210480Y CN201210480Y CNU2008201085647U CN200820108564U CN201210480Y CN 201210480 Y CN201210480 Y CN 201210480Y CN U2008201085647 U CNU2008201085647 U CN U2008201085647U CN 200820108564 U CN200820108564 U CN 200820108564U CN 201210480 Y CN201210480 Y CN 201210480Y
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- CN
- China
- Prior art keywords
- air suction
- getter
- helix
- electro
- suction element
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
Abstract
The utility model provides a heater air suction component, characterized in that a resistance heater strip helix is regarded as a frame of a coating getter, a layer of alumina is performed with electrophoresis on a helix thread as an insulating layer, the getter is filled in a helix cavity, and the whole helix is covered by the getter at least. Activating mode of the air suction component comprises adding power supply to two ends of the helix thread to heat the air suction component so as to prevent an electro-vacuum device from entire thermal damage caused by heating or bake heating; obtaining needed activating temperature of the getter by selecting material, diameter and helix parameter of the resistance heater strip and adjusting the activated current or voltage according to quality of the getter. The air suction component may adjust radian of the helix thread according to internal shape of the electro-vacuum device, thereby effectively making use of internal space of the electro-vacuum device without independent getter chamber. The utility model has solved problems of limitation of structure design of the electro-vacuum device cased by placing the air suction component and of thermal damage to the entire electro-vacuum device caused by induction heating or bake heating.
Description
Technical field
The utility model relates to a kind of heater type air suction element of eliminating the electron tube residual gas.
Background technology
The residual gas of electron tube inside directly has influence on the performance of device, especially to seriously influencing device lifetime and reliability.The vacuum degree of electron tube inside can be kept or improve to the use of air suction element, thereby can improve performance, life-span and the reliability of electron tube.Air suction element needed to carry out heat activation under vacuum condition and handles before using.Air suction element has not strip resistance heater strip and strip resistance heater strip.The air suction element of strip resistance heater strip does not have ring-type, sheet, column, band shape etc., can activate by induction or baking heating.The air suction element of strip resistance heater strip is called heater type air suction element, and directly the galvanization heating activates.
At present, in actual applications, the air suction element of strip resistance heater strip must not activate with induction heating or baking heating, therefore might be caused fire damage to electron tube, thereby influence the performance of electron tube.
The heater type air suction element heat activation of can directly switching on of band heater strip, the air suction element self-temperature is higher, but air suction element is much lower relatively to the radiation temperature of surrounding environment, can not cause fire damage to device, therefore, heater type air suction element has superiority on activating.Usually, the electron tube shell mostly is cylindrical, and inside has sandwich sometimes.Along with the development of device miniaturization, need the interlayer gap is placed or be placed on to air suction element along the wall inner casing, but existing cylindrical heater type air suction element occupies more space in electron tube, be unfavorable for making full use of the electron tube inner space.
The utility model content
The purpose of this utility model be at air suction element be placed in the electron tube time, be subjected to the restriction of structural design, and induction heating or baking heating bring the problem of fire damage for electron tube integral body, and a kind of heater type air suction element be provided.
For realizing described purpose, the technical solution adopted in the utility model is:
A kind of heater type air suction element, the taenidium of resistance heating wire's coiled be as support, above electrophoresis one deck aluminium oxide make insulating barrier, getter is filled in the cavity that heater strip surrounds on the one hand, on the other hand whole spiral is coated.
The size of described heater type air suction element and the quality of getter are determined as required.
Active mode of the present utility model adopts and adds that at the taenidium two ends power supply directly heats air suction element, therefore can avoid because the fire damage that induction heating or baking heating are brought for electron tube integral body.By selection, and regulate the heat activation curtage, to obtain required activationary temperature according to the getter quality to the used resistance heating wire material of spiral, silk footpath, helix parameter.
Heater type air suction element of the present utility model need not be provided with the getter chamber in the inside of electron tube, can adjust the radian of taenidium according to the interior shape of electron tube, thereby effectively utilize the electron tube volume inside.The utility model had both solved because the placement of air suction element to the restriction of electron tube structural design, solves again because the fire damage that induction heating or baking heating bring for electron tube integral body.
Description of drawings
Fig. 1 is the schematic diagram of resistance heating wire's spiral;
Fig. 2 is the resistance heating wire's of band alumina layer a sectional view;
Fig. 3 is the shape schematic diagram of heater type air suction element;
Fig. 4, Fig. 6, Fig. 7 are the assembling schematic diagram of heater type air suction element in three kinds of different actual electrical vacuum devices;
Fig. 5 is the room temperature pumping property curve after heater type air suction element activates, and Fig. 5 a is the gettering rate curve, and Fig. 5 b is the indicatrix of gettering rate and inspiratory capacity relation.
Embodiment
The utility model provides a kind of heater type air suction element, is described in further detail below in conjunction with accompanying drawing.
The utility model adopts by the spiral of resistance heating wire's coiled in a certain resistance wire composition, a certain silk footpath support as the coating getter, and its structure as shown in Figure 1.At first on taenidium electrophoresis one deck aluminium oxide as insulating barrier, resistance heating wire's the sectional view of aluminium oxide that Figure 2 shows that surface applied, 1 is the resistance heating wire, 2 is aluminium oxide; Then getter is filled on the one hand in the cavity that the heater strip spiral surrounds, on the other hand whole spiral is coated, obtain required heater type air suction element size and getter quality as required.The shape of heater type air suction element of the present utility model as shown in Figure 3,3 is getter, getter is filled in the cavity that heater strip surrounds on the one hand, on the other hand spiral is coated; Two ends are the lead-in wire of taenidium, and lead portion has only resistance wire, no spiral and getter, and lead-in wire is unsuitable oversize, is advisable at 10～25mm.
As shown in Figure 4, in cylindrical electron tube, be parallel on the position of bottom interior wall and fixed heater type air suction element 4 of the present utility model, the fan-shaped radian of this heater type air suction element is 50 ° (not containing lead-in wire, as follows), and the resistance heating wire material is W-20wt.%Re, the silk footpath is 0.2mm, helix length is 40mm, screw diameter 2mm, and the spiral number of turns is 7 circles, applied the about 3.5mm of diameter of Ti base getter air suction element afterwards, wherein about 0.3 gram of getter grain weight.4 is heater type air suction element of the present utility model among the figure, is connected with extraneous power supply by binding post, connects the current stabilization DC power supply and can begin heat activation heater type of the present utility model air suction element (as follows).When heating current is 3.6A, can make the temperature of heater type air suction element reach 650 ℃, be incubated after 30 minutes, after the air suction element temperature is reduced to room temperature, the pumping property data that record air suction element as shown in Figure 5, Fig. 5 a is the gettering rate curve, and Fig. 5 b is the indicatrix of gettering rate and inspiratory capacity relation; As can be seen from Figure 5, the element of this type has good pumping property after activating.
As shown in Figure 6, in electron tube, be parallel on the position of bottom interior wall and fixed heater type air suction element 4 of the present utility model, the fan-shaped radian of this heater type air suction element is 125 °, the used resistance wire silk of spiral directly is 0.3mm, helix length is 120mm, screw diameter is 3mm, and the screw number of turns is 16 circles, has applied the about 5mm of diameter of getter air suction element afterwards.This figure shows the shape and size that can adjust heater type air suction element according to the interior shape of electron tube.
As shown in Figure 7, the fixed-site of the bottom two layers crustless sandwich in electron tube heater type air suction element 4 of the present utility model, the fan-shaped radian of this heater type air suction element is 72 °, taenidium directly is 0.3mm, helix length is 50mm, screw diameter is 2.2mm, and the screw number of turns is 5 circles, has applied the about 5mm of diameter of getter air suction element afterwards.
Above embodiment is for the usefulness of understanding the utility model, is not to be to restriction of the present utility model, and the technical staff in relevant field on the basis of the described technical scheme of claim, can also make multiple variation or distortion.For example the shared fan-shaped angle in the silk footpath of the used resistance wire kind of spiral, resistance wire, spiral, the kind of getter etc. are not subjected to the restriction of accompanying drawing; And for example, make the two ends heating be drawn out to the restriction that extraneous passage is not subjected to accompanying drawing, and so on, variation that all are equal to or modification all should be within protection ranges of the present utility model.
Claims (1)
1. a heater type air suction element is characterized in that, described air suction element is formed and comprised getter support, alumina insulating layer and getter; Described getter support is the spiral of resistance heating wire's coiled, and one deck alumina insulating layer is arranged on it; Whole spiral is coated by getter, and also is filled with getter in the cavity of described heater strip spiral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201085647U CN201210480Y (en) | 2008-06-13 | 2008-06-13 | Hot element type sucking component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201085647U CN201210480Y (en) | 2008-06-13 | 2008-06-13 | Hot element type sucking component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201210480Y true CN201210480Y (en) | 2009-03-18 |
Family
ID=40481217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201085647U Expired - Lifetime CN201210480Y (en) | 2008-06-13 | 2008-06-13 | Hot element type sucking component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201210480Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728075A (en) * | 2013-12-19 | 2015-06-24 | 北京有色金属研究总院 | Internal-heating type getter element and high-pumping-speed getter pump |
| CN105858587A (en) * | 2016-06-14 | 2016-08-17 | 合肥芯福传感器技术有限公司 | Heater structure for heating and activating micro-miniature self-heating air suction agents and method for manufacturing heater structure |
| CN110023623A (en) * | 2016-11-28 | 2019-07-16 | 大学共同利用机关法人高能量加速器研究机构 | Nonevaporable getter coating member, container, preparation method, device |
| CN111001545A (en) * | 2019-11-25 | 2020-04-14 | 烟台艾睿光电科技有限公司 | Method for preventing getter from falling particles and getter and reinforced coating assembly |
-
2008
- 2008-06-13 CN CNU2008201085647U patent/CN201210480Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728075A (en) * | 2013-12-19 | 2015-06-24 | 北京有色金属研究总院 | Internal-heating type getter element and high-pumping-speed getter pump |
| CN104728075B (en) * | 2013-12-19 | 2017-02-08 | 北京有色金属研究总院 | Internal-heating type getter element and high-pumping-speed getter pump |
| CN105858587A (en) * | 2016-06-14 | 2016-08-17 | 合肥芯福传感器技术有限公司 | Heater structure for heating and activating micro-miniature self-heating air suction agents and method for manufacturing heater structure |
| CN110023623A (en) * | 2016-11-28 | 2019-07-16 | 大学共同利用机关法人高能量加速器研究机构 | Nonevaporable getter coating member, container, preparation method, device |
| CN111001545A (en) * | 2019-11-25 | 2020-04-14 | 烟台艾睿光电科技有限公司 | Method for preventing getter from falling particles and getter and reinforced coating assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090318 |
|
| CX01 | Expiry of patent term |