CN110887569B - Getter assembly, Dewar assembly, assembly method of Dewar assembly and infrared detector - Google Patents
Getter assembly, Dewar assembly, assembly method of Dewar assembly and infrared detector Download PDFInfo
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- CN110887569B CN110887569B CN201911065018.9A CN201911065018A CN110887569B CN 110887569 B CN110887569 B CN 110887569B CN 201911065018 A CN201911065018 A CN 201911065018A CN 110887569 B CN110887569 B CN 110887569B
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000003466 welding Methods 0.000 claims description 21
- 239000012212 insulator Substances 0.000 claims description 20
- 239000012634 fragment Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims 3
- 238000000429 assembly Methods 0.000 claims 3
- 230000008569 process Effects 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000005247 gettering Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 229910052755 nonmetal Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/0205—Mechanical elements; Supports for optical elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/0215—Compact construction
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- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention discloses a getter component, a Dewar component, an assembly method of the Dewar component and an infrared detector. The getter assembly includes: the getter comprises a getter body and a fixing piece, wherein the getter body is provided with a first electrode and a second electrode, and the fixing piece is connected with the first electrode. The dewar assembly includes: the getter assembly is located in the containing space, the second electrode is electrically connected with the shell, the protruding portion is provided with a mounting hole, and the fixing piece is connected with the mounting hole in a matched mode. By adopting the invention, the getter component can be directly assembled on the shell of the Dewar component after the integral assembly of the getter component is finished, so that the assembly of the getter body is convenient, the getter body is prevented from being attached to the shell of the Dewar component in the whole process of assembly, the assembly efficiency of the getter component can be improved, the installation space for assembling the getter component is avoided when the size of the Dewar component is set, and the size of the Dewar component is reduced.
Description
Technical Field
The invention relates to the technical field of detectors, in particular to a getter assembly, a Dewar assembly, an assembly method of the Dewar assembly and an infrared detector.
Background
In the related art, the dewar assembly generally includes a getter, an ohmic ring, an L-shaped bracket, and an insulator pin, wherein the getter is held tightly by the ohmic ring for fixing, the ohmic ring is welded and fixed to the micro dewar housing after assembly, and the first electrode of the getter is welded to the insulator on the housing. And after the getter, the ohmic ring and the micro Dewar shell are assembled, the L-shaped bracket is welded and fixed with the micro Dewar shell and the L-shaped bracket is welded and fixed with the getter electrode.
Above-mentioned assembly method need assemble and weld at little dewar shell structure, and assembly and welding process can not break away from the shell part to all structures are inside the dewar shell, and the shared space of overall structure is great, need reserve sufficient space for 100 assembly process of getter body, welding process and welding tool during little dewar design, make little dewar structure whole volume great, and the installation technology is complicated and the operation degree of difficulty coefficient is high, be unfavorable for miniaturized development.
Disclosure of Invention
The embodiment of the invention provides a getter assembly, a Dewar assembly, an assembly method of the Dewar assembly and an infrared detector, and aims to solve the problems that a getter is difficult to install and the volume of the Dewar assembly is large in the prior art.
The embodiment of the invention provides a Dewar getter assembly of an infrared detector, which comprises:
a getter body provided with a first electrode and a second electrode;
a fixing member connected with the first electrode.
According to some embodiments of the invention, the fixture comprises:
and the first electrode penetrates through the supporting flange.
According to some embodiments of the invention, the fixture comprises:
flange plate
The insulator penetrates through the flange plate, and one end of the insulator is connected with the first electrode.
In some embodiments of the invention, the infrared detector dewar getter assembly further comprises:
the clamp is barrel-shaped and sleeved outside the getter body, and the flange plate is arranged at one end of the clamp.
Further, the jig includes:
the shell is barrel-shaped and sleeved outside the getter body, and is provided with a plurality of hollow structures;
the shell fragment, the shell fragment is located in the hollow out construction, the one end of shell fragment with the casing is connected, the other end of shell fragment towards the inside extension of casing, in order to with the periphery wall counterbalance of getter body.
Furthermore, the elastic pieces correspond to the hollow structures one to one, and the hollow structures are arranged at intervals along the circumferential direction of the central axis of the shell.
The embodiment of the invention also provides an infrared detector dewar component, which comprises:
a getter assembly, the getter assembly comprising:
a getter body provided with a first electrode and a second electrode;
a fixing member connected to the first electrode;
the shell, the shell includes the bellying, the bellying orientation the outside arch of shell holds the space in order to form, the getter subassembly is located hold in the space, the second electrode with the shell electricity is connected, the bellying has the mounting hole, the mounting with the mounting hole cooperation is connected.
An embodiment of the present invention further provides an infrared detector, including:
a dewar assembly, said dewar assembly being the infrared detector dewar assembly of claim 7.
The embodiment of the invention also provides an assembly method of the infrared detector Dewar component, wherein the infrared detector Dewar component is the infrared detector Dewar component;
the assembling method comprises the following steps:
fitting the fixing member to the mounting hole;
welding the second electrode to the housing.
According to some embodiments of the invention, the welding the second electrode to the housing comprises:
and welding the second electrode and the shell through a connecting piece.
By adopting the embodiment of the invention, the getter component can be directly assembled on the shell of the Dewar component after the integral assembly of the getter component is finished, so that the assembly of the getter body 100 can be facilitated, the getter body 100 is prevented from being attached to the shell of the Dewar component 1 in the whole assembling process, the assembling efficiency of the getter component can be improved, the installation space is prevented from being left for the assembly of the getter component when the size of the Dewar component is set, and the size of the Dewar component can be correspondingly reduced.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic diagram of an infrared detector dewar assembly according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a Dewar getter assembly for infrared detectors in an embodiment of the present invention;
FIG. 3 is a schematic diagram of the structure of a Dewar getter assembly for infrared detectors in an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an infrared detector dewar assembly in an embodiment of the present invention;
FIG. 5 is a schematic structural view of a Dewar getter assembly for infrared detectors in an embodiment of the present invention;
fig. 6 is a schematic structural view of a dewar getter assembly of an infrared detector in an embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The embodiment of the invention provides an infrared detector Dewar getter assembly 10, which comprises: a getter body 100 and a fixture.
Wherein the getter body 100 is provided with a first electrode 110 and a second electrode 120. The getter body 100 is a non-metal getter material having a gettering function, and is used for adsorbing gas released from adhesives and components in the dewar assembly 1. The first electrode 110 and the second electrode 120 are both metal material pieces with conductive functions. The fixing member is connected to the first electrode 110. The fixture is used to mount the getter assembly 10 to the housing 20 of the dewar assembly 1.
According to the infrared detector Dewar getter assembly 10 provided by the embodiment of the invention, the structure is compact, the getter assembly 10 can be directly assembled on the outer shell 20 of the Dewar assembly 1 after the integral assembly is completed, so that the assembly of the getter body 100 can be facilitated, the getter body 100 is prevented from being attached to the outer shell 20 of the Dewar assembly 1 in the whole process in the assembly process, the assembly efficiency of the getter assembly 10 can be improved, the installation space is required to be reserved for the assembly space of the getter assembly 10 when the size of the Dewar assembly 1 is set, and the size of the Dewar assembly 1 can be correspondingly reduced.
On the basis of the above-described embodiment, various modified embodiments are further proposed, and it is to be noted herein that, in order to make the description brief, only the differences from the above-described embodiment are described in the various modified embodiments.
As shown in fig. 6, according to some embodiments of the present invention, the fixing member may include: a support flange 130, and the first electrode 110 is disposed through the support flange 130. The first electrode 110 can serve as a support structure for the getter assembly 10 and is connected to the support flange 130. Thereby, the structure of the getter assembly 10 can be simplified.
As shown in fig. 3, according to some embodiments of the invention, the fixing member may include: the flange 140 and the insulator 150, the insulator 150 is disposed through the flange 140, and one end of the insulator 150 is connected to the first electrode 110. For example, the insulator 150 may be soldered to the flange 140. One end of the insulator 150 is welded to the first electrode 110 by high frequency welding. The insulator 150 may include a metal electrode and a ceramic insulating sheath through which the metal electrode is inserted. One end of the metal electrode of the insulator 150 is welded to the first electrode 110 by high frequency welding.
As shown in fig. 2, 3, in some embodiments of the present invention, the infrared detector dewar getter assembly 10 may further comprise: the clamp 160 is barrel-shaped and is sleeved on the getter body 100, and the flange 140 is disposed at one end of the clamp 160. The flange 140 is adapted to cover one end of the clamp 160. The getter body 100 can be placed within the semi-enclosed space defined by the clamp 160 and the flange 140. Thus, the clamp 160 can be used in conjunction with the flange 140 to secure the getter body 100.
For example, the clamp 160 may be a cylindrical member with one end open and the other end closed. The flange 140 is welded to the open end to shield the open end. The second electrode 120 is welded to the closed end. The closed end is provided with a connector 170 adapted to connect to the housing 20. As another example, the clamp 160 may be a cylindrical member open at both ends. The flange 140 is welded to the open end at one end to shield the open end. The second electrode 120 protrudes from the open end of the other end to be connected to the housing 20.
Further, as shown in fig. 2 and 3, the clamp 160 may include: a casing 161 and a spring piece 162, wherein the casing 161 is barrel-shaped and is externally sleeved on the getter body 100, and the casing 161 has a plurality of hollow structures. The hollow structure penetrates the wall surface of the housing 161. The elastic sheet 162 is disposed in the hollow structure, one end of the elastic sheet 162 is connected to the casing 161, and the other end of the elastic sheet 162 extends toward the inside of the casing 161 to abut against the outer peripheral wall of the getter body 100. The elastic sheet 162 may be used to fix the getter body 100, so as to prevent the getter body 100 from shaking arbitrarily in the housing 161.
The hollow structure is only one embodiment of the present invention, and is not limited to the structure of the jig 160. The fixture 160 may not have a hollow structure. For example, the elastic piece 162 is provided on the inner peripheral wall of the jig 160, one end of the elastic piece 162 is connected to the housing 161, and the other end of the elastic piece 162 extends toward the inside of the housing 161.
Furthermore, the elastic pieces 162 correspond to the hollow structures one to one, in other words, each hollow structure is provided with one elastic piece 162 therein. The plurality of hollow structures are arranged at intervals in the circumferential direction of the central axis of the housing 161. For example, the hollow structures may be plural, and the plural hollow structures are arranged at even intervals in the circumferential direction of the central axis of the housing 161. Further, hollow out construction can be for many pairs, and every is to two hollow out constructions in the hollow out construction arrange relatively, and it has an elastic sheet 162 to correspond in every hollow out construction.
The embodiment of the invention also provides an infrared detector Dewar component 1, wherein the Dewar component 1 is used for providing a low-temperature and vacuum working environment for a detector chip in the infrared detector. As shown in fig. 1, 4 and 5, the dewar assembly 1 includes: a getter assembly 10 and a housing 20.
Wherein the getter assembly 10 comprises: a getter body 100 and a fixture. The getter body 100 is provided with a first electrode 110 and a second electrode 120. The getter body 100 is a non-metal getter material having a gettering function, and is used for adsorbing gas released from adhesives and components in the dewar assembly 1. The first electrode 110 and the second electrode 120 are metal material pieces with conductive function. The fixing member is connected to the first electrode 110.
The housing 20 can include a protrusion 200, the protrusion 200 protrudes toward the outside of the housing 20 to form a containing space, the getter assembly 10 (which can be the whole structure or a partial structure of the getter assembly 10) is located in the containing space, and the second electrode 120 is electrically connected to the housing 20, for example, the second electrode 120 is welded to the housing 20. The boss 200 has a mounting hole penetrating a wall surface of the boss 200. The fixing piece is connected with the mounting hole in a matched mode. The fixture is used to mount the getter assembly 10 to the housing 20 of the dewar assembly 1. The holding space may be sized to just receive the getter assembly 10.
According to the infrared detector Dewar component 1 provided by the embodiment of the invention, the getter component 10 is taken as an independent part to be separated from the shell 20, and the getter component 10 is welded on the shell 20 after being assembled, namely, an external welding method is adopted, so that the assembly of the getter body 100 can be facilitated, the getter body 100 is prevented from being attached to the shell 20 of the Dewar component 1 in the whole process of assembling, the assembling efficiency of the getter component 10 can be improved, the mounting space for assembling the getter component 10 is prevented from being left when the size of the Dewar component 1 is set, and the size of the Dewar component 1 can be correspondingly reduced. In addition, by providing the projection 200 on the housing 20, the projection 200 can be used to house the getter assembly 10, so that the volume of the dewar assembly 1 can be further reduced.
Through experimental determination, the dewar assembly 1 of the present invention can reduce the diameter of the outer shell 20 by about 32%, so that the overall volume of the dewar assembly 1 is reduced by about 12%, and the overall mass is reduced by about 26%.
Further, dewar assembly 1 may be a micro dewar. The micro Dewar is generally a vacuum structure, when the micro Dewar packaging structure keeps a high vacuum degree, convection is ignored inside the micro Dewar, the micro Dewar packaging structure has a low heat load, and a detector chip can reach the working temperature (77K).
An embodiment of the present invention further provides an infrared detector, including: a dewar assembly, said dewar assembly being an infrared detector dewar assembly 1 as described above.
According to the infrared detector provided by the embodiment of the invention, the getter component 10 can be directly assembled on the shell 20 of the Dewar component 1 after being integrally assembled, so that the assembly of the getter body 100 can be facilitated, the getter body 100 is prevented from being attached to the shell 20 of the Dewar component 1 in the whole assembling process, the assembling efficiency of the getter component 10 can be improved, the installation space is prevented from being left for the assembling of the getter component 10 when the size of the Dewar component 1 is set, and the size of the Dewar component 1 can be correspondingly reduced. In addition, by providing the protrusion 200 on the housing 20, the protrusion 200 can be used to accommodate the getter assembly 10, so that the volume of the dewar assembly 1 can be further reduced, and thus the volume of the infrared detector can be reduced.
Further, the infrared detector may be a refrigeration type infrared detector. The infrared detector also comprises a detector chip and a refrigerator. The detector chip is used for receiving photoelectric signals to complete photoelectric conversion, and the refrigerator is used for providing a low-temperature cold source for the detector chip.
The embodiment of the invention also provides an assembly method of the infrared detector Dewar component, wherein the infrared detector Dewar component is the infrared detector Dewar component;
the assembling method comprises the following steps:
fitting the fixing member to the mounting hole;
and welding the second electrode and the shell. The second electrode is welded to the housing, for example by laser welding. It should be noted that the "welding" mentioned herein may be direct welding or indirect welding.
According to the assembling method of the infrared detector dewar component, the getter component can be directly assembled on the shell of the dewar component after the whole assembly of the getter component is finished, so that the assembly of the getter body 100 can be facilitated, the getter body 100 is prevented from being attached to the shell of the dewar component 1 in the whole assembling process, the assembling efficiency of the getter component can be improved, the installation space is prevented from being left for the assembling vacancy of the getter component when the size of the dewar component is set, and the size of the dewar component can be correspondingly reduced. In addition, through set up the bellying on the shell, the bellying can be used for holding the getter subassembly to can further reduce the volume of dewar subassembly, and then can reduce the volume of infrared detector subassembly.
According to some embodiments of the invention, welding the second electrode to the housing comprises:
and welding the second electrode and the shell through the connecting piece.
A dewar assembly 1 according to an embodiment of the present invention is described in detail in two specific embodiments with reference to fig. 1 to 6. It is to be understood that the following description is illustrative only and is not intended to be in any way limiting. All similar structures and similar variations thereof adopted by the invention are intended to fall within the scope of the invention.
Example one
As shown in fig. 1, an infrared detector dewar assembly 1 according to an embodiment of the present invention includes: a getter assembly 10 and a housing 20.
Wherein the getter assembly 10 comprises: getter body 100, fasteners, and clamp 160. The getter body 100 is provided with a first electrode 110 and a second electrode 120. The getter body 100 is a non-metal getter material having a gettering function, and is used for adsorbing gas released from adhesives and components in the dewar assembly 1. The first electrode 110 and the second electrode 120 are metal material pieces with conductive function. The fixing member is connected to the first electrode 110.
As shown in fig. 3, the fixing member may include: the flange 140 and the insulator 150, the insulator 150 is disposed through the flange 140, and one end of the insulator 150 is connected to the first electrode 110. For example, the insulator 150 may be soldered to the flange 140. One end of the insulator 150 is welded to the first electrode 110 by high frequency welding. The insulator 150 may include a metal electrode and a ceramic insulating sheath through which the metal electrode is inserted. One end of the metal electrode of the insulator 150 is welded to the first electrode 110 by high frequency welding.
As shown in fig. 2 and 3, the jig 160 includes: a housing 161 and a spring plate 162. The housing 161 may be a cylindrical member with one end open and the other end closed. The housing 161 is disposed around the getter body 100, and the flange 140 is disposed at the open end of the housing 161. The flange 140 is adapted to shield the open end of the clamp 160. The getter body 100 can be placed within the semi-enclosed space defined by the clamp 160 and the flange 140. The second electrode 120 is welded to the closed end. The closed end is provided with a connector 170 adapted to connect to the housing 20.
As shown in fig. 2 and 3, the housing 161 has a plurality of hollow structures. The plurality of hollow structures are arranged at intervals in the circumferential direction of the central axis of the housing 161. The hollow structure penetrates the wall surface of the housing 161. The elastic pieces 162 correspond to the hollow structures one to one, in other words, one elastic piece 162 is arranged in each hollow structure. The elastic sheet 162 is disposed in the hollow structure, one end of the elastic sheet 162 is connected to the casing 161, and the other end of the elastic sheet 162 extends toward the inside of the casing 161 to abut against the outer peripheral wall of the getter body 100.
As shown in fig. 1, the housing 20 may include a boss 200, and the boss 200 has a cylindrical shape. The protrusion 200 protrudes toward the outside of the housing 20 to form a containing space in which the getter assembly 10 is located. The boss 200 has a mounting hole penetrating a wall surface of the boss 200. The flange plate 140 is connected with the mounting hole in a matching way. The coupling 170 is laser welded to the housing 20.
Example two
As shown in fig. 5, an infrared detector dewar assembly 1 according to an embodiment of the present invention includes: a getter assembly 10 and a housing 20.
Wherein the getter assembly 10 comprises: getter body 100, fasteners and connectors 170. The getter body 100 is provided with a first electrode 110 and a second electrode 120. The getter body 100 is a non-metal getter material having a gettering function, and is used for adsorbing gas released from adhesives and components in the dewar assembly 1. The first electrode 110 and the second electrode 120 are metal material pieces with conductive function. The fixing member is connected to the first electrode 110.
As shown in fig. 6, the fixing member may include: a support flange 130, and the first electrode 110 is disposed through the support flange 130. The first electrode 110 can serve as a support structure for the getter assembly 10 and is connected to the support flange 130.
As shown in fig. 5 and 6, the housing 20 may include a boss 200, and the boss 200 may have a cylindrical shape. The protrusion 200 protrudes toward the outside of the housing 20 to form a containing space in which the getter assembly 10 is located. The boss 200 has a mounting hole penetrating a wall surface of the boss 200. The support flange 130 is coupled to the mounting hole. The coupling 170 is laser welded to the housing 20.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, and those skilled in the art can make various modifications and changes. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Furthermore, in the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. An infrared detector dewar assembly comprising:
a plurality of getter assemblies, each getter assembly comprising:
a getter body provided with a first electrode and a second electrode;
a fixing member connected to the first electrode;
the shell comprises a plurality of protruding parts which correspond to the plurality of getter components one to one, the protruding parts protrude towards the outside of the shell to form a containing space, the getter components are located in the containing space, the second electrode is electrically connected with the shell, the protruding parts are provided with mounting holes, and the fixing parts are connected with the mounting holes in a matched mode;
the getter assembly is adapted to be directly assembled to the housing by the fastener after the integral assembly is complete.
2. The infrared detector dewar assembly of claim 1, wherein said fixing member comprises:
and the first electrode penetrates through the supporting flange.
3. The infrared detector dewar assembly of claim 1, wherein said fixing member comprises:
flange plate
The insulator penetrates through the flange plate, and one end of the insulator is connected with the first electrode.
4. The infrared detector dewar assembly of claim 3, further comprising:
the clamp is barrel-shaped and sleeved outside the getter body, and the flange plate is arranged at one end of the clamp.
5. The infrared detector dewar assembly of claim 4, wherein said clamp comprises:
the shell is barrel-shaped and sleeved outside the getter body, and is provided with a plurality of hollow structures;
the shell fragment, the shell fragment is located in the hollow out construction, the one end of shell fragment with the casing is connected, the other end of shell fragment towards the inside extension of casing, in order to with the periphery wall counterbalance of getter body.
6. The infrared detector dewar assembly of claim 5, wherein the spring pieces correspond to the hollow structures one to one, and the plurality of hollow structures are arranged at intervals along a circumferential direction of a central axis of the housing.
7. An infrared detector, comprising:
a dewar assembly;
the dewar assembly comprising:
a plurality of getter assemblies, each getter assembly comprising:
a getter body provided with a first electrode and a second electrode;
a fixing member connected to the first electrode;
the shell comprises a plurality of protruding parts which correspond to the plurality of getter components one to one, the protruding parts protrude towards the outside of the shell to form a containing space, the getter components are located in the containing space, the second electrode is electrically connected with the shell, the protruding parts are provided with mounting holes, and the fixing parts are connected with the mounting holes in a matched mode;
the getter assembly is adapted to be directly assembled to the housing by the fastener after the integral assembly is complete.
8. A method of assembling an infrared detector dewar assembly, said infrared detector dewar assembly comprising:
a plurality of getter assemblies, each getter assembly comprising:
a getter body provided with a first electrode and a second electrode;
a fixing member connected to the first electrode;
the shell comprises a plurality of protruding parts which correspond to the plurality of getter components one to one, the protruding parts protrude towards the outside of the shell to form a containing space, the getter components are located in the containing space, the second electrode is electrically connected with the shell, the protruding parts are provided with mounting holes, and the fixing parts are connected with the mounting holes in a matched mode;
the getter assembly is suitable for being directly assembled to the shell through the fixing piece after the integral assembly is finished;
the assembling method comprises the following steps:
fitting the fixing member to the mounting hole;
welding the second electrode to the housing.
9. The method of assembling an infrared detector dewar assembly of claim 8, wherein said welding said second electrode to said outer shell comprises:
and welding the second electrode and the shell through a connecting piece.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911065018.9A CN110887569B (en) | 2019-11-04 | 2019-11-04 | Getter assembly, Dewar assembly, assembly method of Dewar assembly and infrared detector |
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| CN201911065018.9A CN110887569B (en) | 2019-11-04 | 2019-11-04 | Getter assembly, Dewar assembly, assembly method of Dewar assembly and infrared detector |
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| CN110887569B true CN110887569B (en) | 2021-11-05 |
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| CN112067141A (en) * | 2020-07-20 | 2020-12-11 | 武汉高芯科技有限公司 | Infrared detector |
| CN112082660A (en) * | 2020-07-28 | 2020-12-15 | 武汉高芯科技有限公司 | Infrared detector and manufacturing method thereof |
| CN113399907A (en) * | 2021-05-24 | 2021-09-17 | 中国电子科技集团公司第十一研究所 | Welding method for weldment on Dewar shell |
| CN116625517B (en) * | 2023-07-21 | 2023-10-20 | 浙江珏芯微电子有限公司 | Novel infrared detector Dewar |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10332478A (en) * | 1997-05-27 | 1998-12-18 | Fujitsu Ltd | Infrared detector and manufacture thereof |
| CN1740758A (en) * | 2004-08-24 | 2006-03-01 | Ulis股份公司 | Component for the detection of electromagnetic radiation, in particular infrared, optical block for infrared imaging integrating said component and fabrication procedure thereof |
| CN201555661U (en) * | 2009-11-18 | 2010-08-18 | 中国科学院上海技术物理研究所 | Structure in Dewar for mounting degasser |
| CN205808563U (en) * | 2015-12-01 | 2016-12-14 | 中国科学院上海技术物理研究所 | The Vacuum Package assembly of non-refrigerated infrared detector |
| CN209541907U (en) * | 2018-08-22 | 2019-10-25 | 中国电子科技集团公司第十一研究所 | Getter series connection Can |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3023974B1 (en) * | 2014-07-18 | 2016-07-22 | Ulis | METHOD FOR MANUFACTURING A DEVICE COMPRISING A VACUUM HERMETIC CASE AND A GETTER |
| CN106768378A (en) * | 2016-11-22 | 2017-05-31 | 昆明物理研究所 | The infrared detector minitype Dewar of real-time detection vacuum |
| CN109945979B (en) * | 2019-03-11 | 2024-05-07 | 中国科学院上海技术物理研究所 | Dewar shell structure of infrared detector assembly for low-temperature optical system |
-
2019
- 2019-11-04 CN CN201911065018.9A patent/CN110887569B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10332478A (en) * | 1997-05-27 | 1998-12-18 | Fujitsu Ltd | Infrared detector and manufacture thereof |
| CN1740758A (en) * | 2004-08-24 | 2006-03-01 | Ulis股份公司 | Component for the detection of electromagnetic radiation, in particular infrared, optical block for infrared imaging integrating said component and fabrication procedure thereof |
| CN201555661U (en) * | 2009-11-18 | 2010-08-18 | 中国科学院上海技术物理研究所 | Structure in Dewar for mounting degasser |
| CN205808563U (en) * | 2015-12-01 | 2016-12-14 | 中国科学院上海技术物理研究所 | The Vacuum Package assembly of non-refrigerated infrared detector |
| CN209541907U (en) * | 2018-08-22 | 2019-10-25 | 中国电子科技集团公司第十一研究所 | Getter series connection Can |
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