CN209541907U

CN209541907U - Getter series connection Can

Info

Publication number: CN209541907U
Application number: CN201821354714.2U
Authority: CN
Inventors: 卢加涛; 刘森; 魏威; 温涛
Original assignee: CETC 11 Research Institute
Current assignee: CETC 11 Research Institute
Priority date: 2018-08-22
Filing date: 2018-08-22
Publication date: 2019-10-25
Anticipated expiration: 2028-08-22

Abstract

The utility model discloses a kind of getter series connection Cans, including Can ontology, be provided on the inner wall of the Can ontology pin insulator, ground wire and it is several be not turned on insulator, several electrified regulation type getters are in series between the pin insulator and ground wire；Insulator is not turned on described in each to be correspondingly arranged between two neighboring electrified regulation type getter, for fixing the electrified regulation type getter.The utility model in Dewar inner wall, that is, Can inner body wall by being arranged several single-pass insulators, single-pass insulator one end and shell are affixed, the binding post of single-pass insulator is for connecting two neighboring electrified regulation type getter so that electrified regulation type getter to be fixed, electrified regulation type getter matrix is avoided to contact with the direct of periphery material, hot type getter suction after activation can keep surface-active for a long time, have stronger air suction function, is conducive to the maintenance in Dewar vacuum service life.

Description

Getter series connection Can

Technical field

The utility model relates to advanced manufacturing technology field more particularly to a kind of getter series connection Cans.

Background technique

Currently the life requirements in two generations and three generations's refrigeration mode detector module on focal plane of infrared ray is commonly 15 years or so, The principal element for influencing its service life is the vacuum life of the micro- Dewar of detector, and the vacuum life of Dewar is depended primarily on and is packaged in The deflation of internal each type component and the leak rate of entire Dewar, therefore one or more is installed inside Dewar can be powered The getter of heat activation, getter are once activated, and just have stronger adsorption function, therefore multiple air-breathings in Dewar Agent generally achievees the purpose that synchronous activation using series system.The routine that is installed in series of multiple getters is using Europe in traditional Dewar The metal ohmic circle of nurse circle holding card mode, fixed getter is directly contacted with getter matrix, when electrified regulation activated degasser, The heated a large amount of deflation of metal ohmic circle, portion gas are pumped, and the getter that residual gas fraction is activated absorbs, and causes to activate The decline of getter activity, the final long-life for influencing Dewar.

Utility model content

The utility model embodiment provides a kind of getter series connection Can, to solve suction existing in the prior art The problem of getter activity as caused by gas residue declines after gas agent is activated.

In a first aspect, the utility model embodiment provides a kind of getter series connection Can, including Can ontology, Be provided on the inner wall of the Can ontology pin insulator, ground wire and it is several be not turned on insulator, the pin type insulation Several electrified regulation type getters are in series between son and ground wire；Each insulator that is not turned on is correspondingly arranged at two neighboring lead to Between electric heating type getter, for fixing the electrified regulation type getter.

Optionally, the pin insulator is embedded on the side wall of the Can ontology；The pin insulator Binding post is located at end and a power electric connection outside Can.

Optionally, the ground wire includes 4J33 ceramic sealing alloy or the ceramic sealing alloy of 4J34.

Optionally, the Can ontology, pin insulator binding post, be not turned on insulator binding post and/or Ground wire plating is equipped with nickel layer.

Optionally, the thickness range of the nickel layer is 0.008-0.020mm.

For the utility model by the way that several single-pass insulators are arranged in Dewar inner wall, that is, Can inner body wall, single-pass is exhausted Edge one end and shell are affixed, and the binding post of single-pass insulator is for connecting two neighboring electrified regulation type getter to energization Hot type getter is fixed, and avoids electrified regulation type getter and contacts with the direct of periphery material, the heating after activation The suction of type getter can keep surface-active for a long time, have stronger air suction function, be conducive to the maintenance in Dewar vacuum service life.

The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model Art means, and being implemented in accordance with the contents of the specification, and in order to allow above and other purpose, feature of the utility model It can be more clearly understood with advantage, it is special below to lift specific embodiment of the present utility model.

Detailed description of the invention

By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as practical to this Novel limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:

Fig. 1 is the overall structure diagram of series connection Can in one embodiment；

Fig. 2 is the perspective view of series connection Can in one embodiment；

Fig. 3 is the perspective view of Fig. 1；

Fig. 4 is the overall structure diagram of series connection Can in second embodiment of the invention.

Specific embodiment

Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure It is fully disclosed to those skilled in the art.

The utility model first embodiment provides a kind of getter series connection shell, in conjunction with Fig. 1, Fig. 2 and Fig. 3, including metal Shell ontology 1, be provided on the inner wall of the Can ontology pin insulator 4, ground wire 5 and it is several be not turned on insulator 3, Several electrified regulation type getters 2 are in series between the pin insulator and ground wire；Each insulator correspondence that is not turned on is set It sets between two neighboring electrified regulation type getter, is not turned on the binding post of insulator and the end of electrified regulation type getter By conducting wire connection, for fixing the electrified regulation type getter.

Embodiment two provides a kind of getter series connection shell, including Can ontology 1 in conjunction with Fig. 4 in the present embodiment, Be provided with ground wire 5 on the inner wall of Can ontology 1, described this body sidewall of Can also on be embedded with pin insulator 4, There are two insulator is not turned on, i.e., first, which is not turned on insulator 3 and second, does not lead for vacuum brazing on the inner wall of Can ontology Logical insulator 6, two are not turned between the binding post of insulator and are connected with electrified regulation type getter 2 by conducting wire, in pin type Insulator 4 and first be not turned on insulation 3 sons between be connected with electrified regulation type getter, be not turned on insulator 6 and ground second Also electrified regulation type getter, each electrified regulation type getter series connection are connected between line 5.Electrified regulation type is inhaled in the present embodiment The number of gas agent and the number for being not turned on insulator can be adjusted according to the actual situation.

In the present embodiment, 4 binding post of pin insulator is located at end outside Can and a power electric connection, for for Electrified regulation type getter is for electric heating, to activate hot type getter.The present embodiment is in Can ontology, pin insulator Binding post, be not turned on the binding post and/or ground wire of insulator plating and be equipped with nickel layer；The thickness range of nickel layer is 0.008- 0.020mm.It can prevent from getting rusty by the way that nickel layer is arranged.

The utility model getter series connection Can using a pin insulator, multiple be not turned on insulator and one Ground wire combines the mode for being brazed in Can inner wall, realizes the effective of multiple getters in Dewar and is installed in series, avoids The mounting means that conventional metals ohm circle card is embraced influences the shortcomings that getter performance plays, and promotes the performance of getter effect；It is interior The multiple insulators in portion are fixed by the way of vacuum brazing with shell, have both ensured intensity, the solder of melting is also by connecting portion It fills full, so that subsequent degasification, exhaust air technique is had more validity, vacuum brazing technique also ensures that shell deformation is small, whole nothing It damages, is more attractive.

It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do There is also other identical elements in the process, method of element, article or device.

Above-mentioned the utility model embodiment serial number is for illustration only, does not represent the advantages or disadvantages of the embodiments.

The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to The specific embodiment stated, the above mentioned embodiment is only schematical, rather than restrictive, this field it is common Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model Under, many forms can be also made, these are belonged within the protection of the utility model.

Claims

The Can 1. a kind of getter is connected, which is characterized in that including Can ontology, the Can ontology it is interior Be provided on wall pin insulator, ground wire and it is several be not turned on insulator, if being in series between the pin insulator and ground wire Dry electrified regulation type getter；It is each it is described be not turned on insulator be correspondingly arranged between two neighboring electrified regulation type getter, For fixing the electrified regulation type getter.
The Can 2. getter as described in claim 1 is connected, which is characterized in that the pin insulator is embedded described On the side wall of Can ontology；The binding post of the pin insulator is located at the end outside Can and is electrically connected with a power supply It connects.
The Can 3. getter as described in claim 1 is connected, which is characterized in that the ground wire includes 4J33 ceramic sealing alloy Or the ceramic sealing alloy of 4J34.
The Can 4. getter as described in claim 1 is connected, which is characterized in that the Can ontology, pin type are exhausted The binding post of edge, the binding post for being not turned on insulator and/or ground wire plating are equipped with nickel layer.
The Can 5. getter as claimed in claim 4 is connected, which is characterized in that the thickness range of the nickel layer is 0.008-0.020mm。