Dewar type temperature returning table

Abstract

The utility model discloses a Dewar temperature returning table, and relates to the technical field of packaging production of Dewar in the middle test, and the Dewar temperature returning table comprises a workbench and an air blowing assembly; a storage cavity is formed in the workbench; a storage opening communicated with the storage cavity is formed in one side of the workbench; a plurality of accommodating grooves for accommodating Dewar flasks are formed in the top of the workbench; the air blowing assembly comprises an air supply source and a plurality of air conveying pipe sets. The plurality of air delivery pipe groups are connected with an air supply source and are used for blowing air to the Dewar flasks in the accommodating grooves in a one-to-one correspondence manner; a plurality of mounting hole groups in one-to-one correspondence with the gas conveying pipe groups are formed in the workbench; the mounting hole group comprises an air pipe hole and a switch hole; the gas pipe group comprises a connecting gas pipe and a gas pipe switch; the other end of the connecting air pipe extends out of the air pipe hole; the air pipe switch is installed on the switch hole, connected with the connecting air pipe and used for controlling connection and disconnection of the connecting air pipe. The temperature returning time is greatly shortened, and the production efficiency is improved; and moreover, the use is flexible, and the convenience of temperature returning operation is improved.

Description

Technical Field

[0001] This application relates to the technical field of medium-test Dewar packaging production, and particularly relates to a Dewar warming table. Background Art

[0002] Infrared focal plane detectors have the advantages of high sensitivity, good environmental adaptability, strong anti-interference ability, light weight, low power consumption, etc., and are widely used in fields such as aerospace infrared remote sensing, national defense, meteorology, environment, medicine, and scientific instruments. In the field of monochromatic detection, indium antimonide (InSb) focal plane detectors have obvious advantages in terms of production cost, pixel uniformity, and consistency. InSb infrared focal plane detectors are temperature-sensitive devices, and their performance is directly affected by their operating temperature. For devices in the infrared band, since their performance at room temperature cannot meet the application requirements or even cannot work, they often need to be refrigerated and the operating temperature needs to be kept stable. Even for devices that can work at room temperature, their operating temperature often needs to be stabilized. Therefore, a suitable packaging structure must be adopted and the operating temperature of the device must be precisely measured and controlled. The most commonly used packaging for InSb infrared focal plane detectors is the Dewar packaging. The Dewar uses liquid nitrogen for cooling. After the chip medium-test is completed, it is necessary to wait for the Dewar temperature to rise back to room temperature before the Dewar can be opened. Currently, the natural warming method is mostly used. However, natural warming takes a long time, which greatly affects production efficiency. Utility Model Content

[0003] In view of this, the purpose of this application is to provide a Dewar warming table to solve the technical problem that the existing natural warming method takes a long time and greatly affects production efficiency.

[0004] To achieve the above technical purpose, this application provides a Dewar warming table, which includes a workbench and a blowing assembly;

[0005] A storage cavity is provided inside the workbench;

[0006] A storage opening communicating with the storage cavity is provided on one side of the workbench;

[0007] A plurality of placement grooves for placing Dewar bottles are provided on the top of the workbench;

[0008] The blowing assembly includes a gas supply source and a plurality of gas pipeline groups;

[0009] The plurality of gas pipeline groups are connected to the gas supply source and are respectively used for blowing air into the Dewar bottles in the placement grooves;

[0010] A plurality of installation hole groups corresponding to the gas pipeline groups one by one are provided on the workbench;

[0011] Each installation hole group includes a gas pipe hole and two switch holes;

[0012] The gas pipeline group includes connecting gas pipelines and gas pipeline switches;

[0013] There are two connecting gas pipelines. One end of one of the connecting gas pipelines is connected to the gas supply source, and the other end is connected to one of the switch holes;

[0014] One end of the other connecting gas pipeline is connected to the other switch hole, and the other end extends out of the gas pipeline hole;

[0015] The gas pipeline switch is installed on the workbench, and its input end and output end are respectively connected to the switch holes in one-to-one correspondence, and are used to control the on-off of the connecting gas pipeline.

[0016] Furthermore, it also includes a closing door;

[0017] The closing door is installed on one side of the workbench and is used to control the opening and closing of the storage opening.

[0018] Furthermore, one side edge of the closing door is hinged to the position on the workbench on one side of the storage opening, and the other side edge is detachably connected to the position on the workbench on the other side of the storage opening.

[0019] Furthermore, at least part of the closing door is transparent and is used to form a visible window area.

[0020] Furthermore, a plurality of installation openings communicating with the storage cavity are provided at the top of the workbench;

[0021] A receiving groove is detachably installed on each of the installation openings in one-to-one correspondence.

[0022] Furthermore, an annular step is provided at the top of the inner side surface of the installation opening;

[0023] An annular flange that contacts and abuts against the annular step is provided at the top of the outer side surface of the receiving groove.

[0024] Furthermore, the thickness of the annular flange is less than the depth of the annular step.

[0025] Furthermore, the plurality of receiving grooves are arranged at intervals in an array.

[0026] Furthermore, an elastic clamping assembly is installed in the receiving groove and is used to clamp the placed Dewar flask.

[0027] Furthermore, a plurality of support feet are provided at the bottom of the workbench;

[0028] Moving rollers are provided at the bottom of the support feet.

[0029] As can be seen from the above technical solutions, when the Dewar warming table designed in this application is in use, first place the Dewar flask in the accommodation groove, then insert the connecting air pipe extending from the air pipe hole into the interior of the Dewar flask, and blow air into the Dewar flask to achieve warming by blowing air. This warming method takes about 1 hour, which significantly shortens the warming time compared to the 4 hours of natural warming, improving the production efficiency. Moreover, the air flow rate into the Dewar flask in each accommodation groove can be independently controlled through the air pipe switch of the corresponding air pipe group, enabling simultaneous warming or separate warming, with flexible use and improved convenience of the warming operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0031] Figure 1 It is a schematic structural diagram of the workbench of a Dewar warming table provided in the present application;

[0032] In the figure: 1, workbench; 11, storage cavity; 12, storage opening; 13, accommodation groove; 14, switch hole; 15, air pipe hole; 16, support feet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The following will clearly and completely describe the technical solutions of the embodiments of the present application with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the embodiments of the present application.

[0034] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0035] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a replaceable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0036] An embodiment of the present application discloses a Dewar warming table.

[0037] Please refer to Figure 1 , an embodiment of a Dewar warming table provided in the embodiments of the present application includes:

[0038] A workbench 1 and a blowing component (not shown in the figure).

[0039] A storage cavity 11 is provided inside the workbench 1. The storage cavity 11 is used to store a gas source. A storage port 12 communicating with the storage cavity 11 is provided on one side of the workbench 1. The storage port 12 allows the gas source to enter and exit, facilitating replacement and maintenance.

[0040] A plurality of placement grooves 13 for placing Dewar flasks are provided on the top of the workbench 1.

[0041] The blowing component includes a gas source and a plurality of gas pipe groups; the plurality of gas pipe groups are connected to the gas source and are respectively used to blow air into the Dewar flasks in the placement grooves 13. The gas source can be a nitrogen cylinder or an air compressor. Of course, in order to accelerate the warming efficiency, a heating device can be additionally provided to heat the gas provided by the gas source.

[0042] A plurality of installation hole groups corresponding to the gas pipe groups one by one are provided on the workbench 1; the installation hole group includes a gas pipe hole 15 and two switch holes 14 (both the gas pipe hole 15 and the switch holes 14 are through holes, communicating with the storage cavity 11); the gas pipe group includes a connecting gas pipe and a gas pipe switch; there are two connecting gas pipes. One end of one of the connecting gas pipes is connected to the gas source, and the other end is connected to one of the switch holes 14; one end of the other connecting gas pipe is connected to the other switch hole 14, and the other end extends out of the gas pipe hole 15; the gas pipe switch is installed on the workbench 1, and its input end and output end are respectively connected to the switch holes 14 in one-to-one correspondence, for controlling the on-off of the connecting gas pipe. The gas source can be multiple or one. In the case of one gas source, the plurality of gas pipe groups are commonly connected to one gas source. In the case of multiple gas sources, the plurality of gas pipe groups can be respectively connected to the gas sources in one-to-one correspondence.

[0043] During use, first place the Dewar flask in the accommodation groove 13, then insert the connecting air pipe extending from the air pipe hole 15 into the interior of the Dewar flask, and blow air into the Dewar flask to achieve warming by blowing. This warming method takes about 1 hour. Compared with the 4 hours of natural warming, the warming time is significantly shortened, and the production efficiency is improved. Moreover, the air flow rate into the Dewar flask in each accommodation groove 13 can be independently controlled through the air pipe switch of the corresponding air pipe group, enabling simultaneous warming or separate warming, with flexible use and improved convenience of the warming operation.

[0044] The setting of the air pipe switch can control the gas flow rate to control the warming speed and avoid excessive internal pressure in the Dewar flask or other safety problems caused by too fast warming. When the Dewar flask warms up to the required temperature, close the air pipe switch, remove the inserted connecting air pipe, and then remove the Dewar flask.

[0045] The above is the first embodiment of a Dewar warming table provided by this application. The following is the second embodiment of a Dewar warming table provided by this application. For details, please refer to Figure 1 。

[0046] Based on the solution of the above first embodiment:

[0047] Furthermore, it further includes a closing door (not shown in the figure); the closing door is installed on one side of the workbench 1 and is used to control the opening and closing of the storage opening 12. When the gas source needs to be replaced or maintained, open the closing door and perform replacement and maintenance through the storage opening 12; during use, the storage opening 12 can be closed to provide a certain degree of protection for the gas source.

[0048] Furthermore, one side edge of the closing door is hinged to the position on the workbench 1 on one side of the storage opening 12, and the other side edge is detachably connected to the position on the workbench 1 on the other side of the storage opening 12. This detachable connection method can specifically be snap connection, lock connection, or other connection methods, and no specific limitation is made.

[0049] Furthermore, at least part of the closing door is transparent to form a visible window area for convenient observation of the interior of the storage cavity 11.

[0050] Furthermore, a plurality of installation openings (not shown in the figure) communicating with the storage cavity 11 are provided at the top of the workbench 1, and accommodation grooves 13 are detachably installed on the installation openings in one-to-one correspondence. Designing the accommodation grooves 13 modularly can reduce the processing difficulty compared with the integrated processing design, reducing the processing cost; with modular design, it is also convenient for subsequent maintenance and replacement, avoiding overall replacement and reducing the maintenance cost.

[0051] Further, a circular step is provided at the top of the inner side of the installation opening, and a circular flange that contacts and abuts against the circular step is provided at the top of the outer side of the accommodation groove 13. The quick installation and cooperation between the accommodation groove 13 and the workbench 1 are achieved through the cooperation of the circular flange and the circular step.

[0052] Further, the thickness of the circular flange is preferably designed to be less than the depth of the circular step to prevent the circular flange from protruding above the top of the workbench 1 after installation, which may affect the aesthetics.

[0053] Further, multiple accommodation grooves 13 can be arranged in a spaced array, specifically, a rectangular array can be used. The number can be set to, for example, 12, and there is no specific limitation.

[0054] Further, an elastic clamping assembly (not shown in the figure) is installed in the accommodation groove 13 for clamping the inserted Dewar flask. The elastic clamping assembly can clamp and fix the inserted Dewar flask to prevent the Dewar flask from shaking, which may affect the rewarming effect. Moreover, the spring clamping assembly can clamp Dewar flasks of different sizes, and has better applicability. The elastic clamping assembly can be designed to include two oppositely arranged clamping blocks and elastic members (such as springs, elastic telescopic rods, etc.) connected between the clamping blocks and the inner wall of the accommodation groove 13.

[0055] Further, a plurality of support feet 16 are provided at the bottom of the workbench 1, and moving rollers (not shown in the figure) are provided at the bottom of the support feet 16. The provision of the moving rollers can make the movement of the workbench 1 more convenient, so as to facilitate the movement to a designated position for the rewarming operation.

[0056] The workbench 1 and the accommodation groove 13 in this application can both be prepared from stainless steel materials, and there is no specific limitation.

[0057] The above provides a detailed introduction to a Dewar rewarming table provided by this application. For those of ordinary skill in the art, according to the idea of the embodiments of this application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to this application.

Claims

1. A Dewar temperature return table, characterized in that: It comprises a workbench (1) and a blowing component; The workbench (1) is provided with a storage cavity (11); A storage opening (12) communicating with the storage cavity (11) is provided on one side of the workbench (1); The top of the workbench (1) is provided with a plurality of accommodating grooves (13) for placing Dewar flasks; The air blowing assembly includes an air supply source and a plurality of air delivery pipe groups; A plurality of gas delivery pipe groups are connected to the gas supply source and are used one by one to blow gas into the Dewar flask in the containing tank (13); The workbench (1) is provided with a plurality of mounting hole groups corresponding one-to-one to the gas delivery pipe groups; The mounting hole group comprises an air pipe hole (15) and two switch holes (14); The gas delivery pipe group includes a connecting gas pipe and a gas pipe switch; There are two connecting air pipes, one end of which is connected to the air supply source, and the other end is connected to one of the switch holes (14); One end of another connecting air pipe is connected to another switch hole (14), and the other end extends out of the air pipe hole (15); The air pipe switch is installed on the workbench (1), and its input end and output end are connected to the switch hole (14) in a one-to-one correspondence, so as to control the on and off of the connecting air pipe.

2. A Dewar temperature regeneration platform according to claim 1, characterized in that: It also includes closed doors; The closed door is installed on one side of the workbench (1) and is used to control the opening and closing of the storage opening (12).

3. A Dewar temperature recovery platform according to claim 2, characterized in that: One side of the closed door is hinged to a position on the workbench (1) located on one side of the storage opening (12), and the other side is detachably connected to a position on the workbench (1) located on the other side of the storage opening (12).

4. A Dewar temperature recovery platform according to claim 2, characterized in that: The closed door is at least partially transparent to form a viewing area.

5. A Dewar temperature regeneration platform according to claim 1, characterized in that: The top of the workbench (1) is provided with a plurality of installation openings communicating with the storage cavity (11); The installation openings are detachably provided with accommodating grooves (13) corresponding to each other.

6. A Dewar temperature regeneration platform according to claim 5, characterized in that: The top of the inner side surface of the installation opening is provided with an annular step; An annular flange is provided at the top of the outer side surface of the accommodating groove (13) and contacts and abuts against the annular step.

7. A Dewar temperature regeneration platform according to claim 6, characterized in that: The annular flange thickness is less than the annular step depth.

8. A Dewar temperature regeneration platform according to claim 1, characterized in that: The plurality of accommodating grooves (13) are arranged in an array at intervals.

9. A Dewar temperature regeneration platform according to claim 1, characterized in that: An elastic clamping assembly is installed in the accommodating groove (13) and is used to clamp the inserted Dewar flask.

10. A Dewar temperature regeneration platform according to claim 1, characterized in that: The bottom of the workbench (1) is provided with a plurality of supporting legs (16); The bottom of the support foot (16) is provided with a movable roller.

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