CN212906024U - Low temperature protection device and camera - Google Patents
Low temperature protection device and camera Download PDFInfo
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- CN212906024U CN212906024U CN202021759433.2U CN202021759433U CN212906024U CN 212906024 U CN212906024 U CN 212906024U CN 202021759433 U CN202021759433 U CN 202021759433U CN 212906024 U CN212906024 U CN 212906024U
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000010438 heat treatment Methods 0.000 claims abstract description 42
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 24
- 239000011521 glass Substances 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 2
- 230000000959 cryoprotective effect Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000000007 visual effect Effects 0.000 abstract description 4
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 25
- 239000010410 layer Substances 0.000 description 19
- 208000033641 Ring chromosome 5 syndrome Diseases 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000005286 illumination Methods 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the field of low-temperature protection, in particular to a low-temperature protection device and a camera, which comprises a transparent heat shield, wherein the heat shield is sealed with the outside; a heating element is arranged in the heat shield, and a nitrogen circulating pipeline leading to the inside of the heat shield is further arranged on the heat shield. The utility model has the advantages that: the device is suitable for the environment with the temperature range of-196 ℃ to 50 ℃, protects the normal use of the camera or other equipment, and particularly has obvious economic value for expensive equipment such as the camera and the like. In addition, the device overall structure is simple, with low costs, separates the heat exchanger and adopts transparently, can realize the biggest visual angle observation of inside camera, also makes things convenient for the external internal condition of observing simultaneously, in time knows the inside situation, and the device need not to carry out follow-up maintenance, and the cost of labor is low.
Description
Technical Field
The utility model relates to a low temperature protection field, concretely relates to low temperature protection device and camera.
Background
In the market, camera protection devices widely applied are all arranged for protecting cameras, so that the cameras can be prevented from being damaged in an external environment, and the service performance of the cameras can be prevented from being interfered under a high-temperature or low-temperature environment. The lowest environmental temperature suitable for the existing camera protection cover available at low temperature is-50 ℃, the camera protection cover can not meet the requirements in the environments with more rigorous testing conditions and large testing temperature range, so that the camera protection cover available at extremely low temperature and high temperature environment needs to be designed for observing the change condition of testing equipment in an experiment, and according to the actual condition, the experiment test also needs a certain brightness to assist the observation of a camera, so that a camera and an illumination protection device available at low temperature need to be researched for observing the experiment test condition of the low temperature environment.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: the technical problem that the environmental temperature range in which the camera protection device can be applied in the prior art is small is solved.
The utility model discloses a realize solving above-mentioned technical problem through following technical means: a low-temperature protection device comprises a transparent heat shield, wherein the heat shield is sealed with the outside;
a heating element is arranged in the heat shield, and a nitrogen circulating pipeline leading to the inside of the heat shield is further arranged on the heat shield.
The low-temperature protection device in the utility model is mainly used for protecting equipment such as a camera, the heat shield can effectively prevent heat exchange between internal equipment and the outside, the influence of the external temperature on the internal equipment is reduced as much as possible, when the external temperature is lower, the heating element heats the interior of the heat shield so as to maintain the temperature of the interior of the heat shield at a normal level and avoid the influence of the over-low external temperature on equipment such as a camera and the like, when the external temperature is overhigh or the temperature heated in the heat shield is overhigh, the nitrogen circulating pipeline leads the circulating nitrogen to the heat shield so as to take away the redundant heat, the internal environment is cooled to ensure the temperature of the internal camera and other equipment to be maintained at a normal level, the device is suitable for the environment with the temperature range of-196 ℃ to 50 ℃, protects the normal use of the camera or other equipment, and particularly has obvious economic value for expensive equipment such as the camera and the like. In addition, the device overall structure is simple, with low costs, separates the heat exchanger and adopts transparently, can realize the biggest visual angle observation of inside camera, also makes things convenient for the external internal condition of observing simultaneously, in time knows the inside situation, and the device need not to carry out follow-up maintenance, and the cost of labor is low.
Preferably, the heat shield is a double-layer vacuum glass dewar, and an installation cover is arranged at an opening of the double-layer vacuum glass dewar.
The double-layer vacuum glass Dewar is of a double-layer glass structure, and the interlayer is vacuumized, so that heat can be effectively insulated.
Preferably, a sealing ring is arranged between the mounting cover and the double-layer vacuum glass Dewar.
Optimally, an outer flange is arranged at an opening of the double-layer vacuum glass Dewar;
the mounting cover and the flange ring are mounted together through screws or bolts and nuts so as to clamp the outer flange in the middle.
Preferably, the heating element is a flexible film-shaped heating sheet, the flexible film-shaped heating sheet encloses a three-dimensional space, and one side of the three-dimensional space is open.
In practical application, the equipment such as a camera is placed in a three-dimensional space surrounded by the flexible film-shaped heating sheets, and the camera can extend out of the three-dimensional space surrounded by the flexible film-shaped heating sheets to shoot an external environment state, so that the equipment is conveniently heated in a low-temperature environment and is prevented from being influenced by external temperature.
The optimized heating device further comprises a controller, a temperature measuring element is further arranged in the heat shield and connected to the controller, and the heating element is controlled by the controller;
and the nitrogen circulating pipeline is provided with an electromagnetic valve, and the electromagnetic valve is controlled by a controller.
In practical application, the temperature range in the heat shield can be set, when the temperature measuring element detects that the temperature in the heat shield is lower than the normal temperature range, a signal is transmitted to the controller, and the controller controls the heating element to work so as to enable the temperature to rise to the normal range; when the temperature is higher than the normal range, a signal is transmitted to the controller, the controller controls the heating element to stop working, and the electromagnetic valve is opened, so that nitrogen circularly flows through the inside of the heat shield to take away redundant heat, and the temperature is maintained in the normal range.
Preferably, a pressure detection element is further arranged in the heat shield and connected to the controller.
The pressure detection element is used for detecting the internal pressure of the heat shield so as to monitor the internal pressure condition.
Preferably, the heat shield is provided with a temperature and pressure acquisition interface, and the temperature and pressure acquisition interface is internally connected with the temperature measuring element and the pressure detecting element.
The temperature and pressure acquisition interface is conveniently connected to the outside, conveniently detects inside temperature and pressure data.
The utility model also discloses a camera, including any one of above-mentioned low temperature protection device, be provided with the fixed frock that is used for installing the camera in the heat shield, the camera passes through fixed frock and installs in the heat shield.
The camera is installed in the heat shield through fixed frock, and low temperature protection device can effectually protect the camera, makes it can use in the environment of different temperatures, especially in the low temperature environment, also can ensure that the camera is in normal temperature range.
Preferably, a lighting device is arranged in the heat shield.
The lighting device can provide lighting for shooting of the camera, and shooting and observation are facilitated.
The utility model has the advantages that:
1. the low temperature protection device in the utility model is mainly used for protecting equipment such as a camera, the heat shield can effectively prevent heat exchange between the internal equipment and the outside, the influence of the external temperature on the internal equipment is reduced as much as possible, when the external temperature is lower, the heating element heats the inside of the heat shield, so that the internal temperature of the heat shield is maintained at a normal level, the influence of the too low external temperature on the equipment such as the camera is avoided, when the external temperature is too high or the temperature heated inside the heat shield is too high, the nitrogen circulating pipeline introduces circulating nitrogen into the heat shield, further takes away redundant heat, reduces the temperature of the internal environment, ensures that the temperature of the equipment such as the internal camera is maintained at a normal level, the device is suitable for the environment between the temperature range of-196 ℃ and 50 ℃, and protects the normal use of the camera or other equipment, especially, the method has obvious economic value for expensive equipment such as cameras and the like. In addition, the device overall structure is simple, with low costs, separates the heat exchanger and adopts transparently, can realize the biggest visual angle observation of inside camera, also makes things convenient for the external internal condition of observing simultaneously, in time knows the inside situation, and the device need not to carry out follow-up maintenance, and the cost of labor is low.
2. The double-layer vacuum glass Dewar is of a double-layer glass structure, and the interlayer is vacuumized, so that heat can be effectively insulated.
3. In practical application, the equipment such as a camera is placed in a three-dimensional space surrounded by the flexible film-shaped heating sheets, and the camera can extend out of the three-dimensional space surrounded by the flexible film-shaped heating sheets to shoot an external environment state, so that the equipment is conveniently heated in a low-temperature environment and is prevented from being influenced by external temperature.
4. In practical application, the temperature range in the heat shield can be set, when the temperature measuring element detects that the temperature in the heat shield is lower than the normal temperature range, a signal is transmitted to the controller, and the controller controls the heating element to work so as to enable the temperature to rise to the normal range; when the temperature is higher than the normal range, a signal is transmitted to the controller, the controller controls the heating element to stop working, and the electromagnetic valve is opened, so that nitrogen circularly flows through the inside of the heat shield to take away redundant heat, and the temperature is maintained in the normal range.
5. The pressure detection element is used for detecting the internal pressure of the heat shield so as to monitor the internal pressure condition.
6. The temperature and pressure acquisition interface is conveniently connected to the outside, conveniently detects inside temperature and pressure data.
7. The camera is installed in the heat shield through fixed frock, and low temperature protection device can effectually protect the camera, makes it can use in the environment of different temperatures, especially in the low temperature environment, also can ensure that the camera is in normal temperature range.
8. The lighting device can provide lighting for shooting of the camera, and shooting and observation are facilitated.
Drawings
Fig. 1 is a schematic diagram of a low temperature protection device and a camera according to an embodiment of the present invention;
wherein,
the device comprises a heat shield-1, an outer flange-11, a temperature and pressure acquisition interface-12 and a fixing tool-13;
a heating element-2;
a nitrogen circulating pipeline-3 and an electromagnetic valve-31;
mounting a cover-4 and a sealing ring-41;
a flange ring-5;
a controller-6;
a camera-7;
an illumination device-8.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1, the low-temperature protection device comprises a transparent heat shield 1, a heating element 2, a nitrogen circulating pipeline 3, a mounting cover 4, a flange ring 5 and a controller 6.
As shown in fig. 1, the heat shield 1 is sealed from the outside; the heat shield 1 is a double-layer vacuum glass Dewar made of quartz glass, and the vacuum degree of the interlayer is 10-2Pa, the opening of the double-layer vacuum glass Dewar is upward, the upper part of the double-layer vacuum glass Dewar is in a double-layer cylinder shape, the lower end of the double-layer vacuum glass Dewar is in a double-layer hemisphere shape, and the opening of the double-layer vacuum glass Dewar is provided with an installation cover 4.
As shown in fig. 1, an outer flange 11 is arranged at the opening of the double-layer vacuum glass dewar; the mounting structure further comprises a flange ring 5, the mounting cover 4 and the flange ring 5 are respectively located on two sides of the outer flange 11, and the mounting cover 4 and the flange ring 5 are mounted together through screws or bolts and nuts so as to clamp the outer flange 11 in the middle.
As shown in fig. 1, a sealing ring 41 is disposed between the mounting cover 4 and the double-layer vacuum glass dewar, specifically, an annular groove is formed on the top surface of the outer flange 11, and the sealing ring 41 is disposed in the annular groove.
As shown in fig. 1, a heating element 2 is disposed in the heat shield 1, and the heating element 2 is a flexible film-shaped heating sheet, and the flexible film-shaped heating sheet encloses a three-dimensional space, one side of which is open. In this embodiment, the flexible film-shaped heating sheet encloses a rectangular space with a downward opening.
In addition, according to actual requirements, the heating element 2 can also adopt a heating wire.
As shown in fig. 1, the device further includes a controller 6, where the controller 6 is a control unit of the whole device, and is in the prior art, and the interior of the controller is controlled by using a PLC, and the PLC is in the prior art, and a person skilled in the art can program the PLC according to actual requirements, so as to implement the control function described in this embodiment.
The heat shield 1 is also internally provided with a temperature measuring element, the temperature measuring element is a temperature sensor and adopts a thermocouple, the temperature measuring element is connected to the controller 6, and the heating element 2 is controlled by the controller 6.
As shown in fig. 1, the heat shield 1 is further provided with a nitrogen gas circulation line 3 leading to the inside of the heat shield 1. The external part of the nitrogen circulating pipeline 3 is communicated to a peripheral nitrogen source, the internal part of the nitrogen circulating pipeline is communicated to the heat shield 1, the nitrogen circulating pipeline 3 is arranged in one inlet and one outlet, and the nitrogen circulating pipeline 3 is arranged on the mounting cover 4.
As shown in fig. 1, the nitrogen circulation line 3 is provided with an electromagnetic valve 31, and the electromagnetic valve 31 is controlled by the controller 6.
The heat shield 1 is also provided with a pressure detection element, the pressure detection element can adopt an air pressure sensor, and the pressure detection element is connected to the controller 6 to ensure that the internal pressure of the heat shield 1 is at normal pressure.
As shown in fig. 1, a temperature and pressure collecting port 12 is arranged on the heat shield 1, the temperature and pressure collecting port 12 is connected with a temperature measuring element and a pressure detecting element, and further, a low-temperature electric connector can be arranged on the mounting cover 4 as the temperature and pressure collecting port 12, so that the connection is convenient.
Example two:
as shown in fig. 1, the present embodiment discloses a camera, which includes the first embodiment of the cryogenic protection device, a fixing tool 13 for installing the camera 7 is disposed in the heat shield 1, and the camera 7 is installed in the heat shield 1 through the fixing tool 13.
Further, as shown in fig. 1, a lighting device 8 is disposed in the heat shield 1, and the lighting device 8 is an illumination lamp.
Specifically, as shown in fig. 1, in this embodiment, the fixing tool 13 is a bracket installed below the mounting cover 4, and the specific shape and structure of the fixing tool can be set according to actual requirements, and the fixing tool can play a role in supporting and mounting, the heating element 2 is installed below the fixing tool 13, and the camera 7 and the lighting device 8 are installed inside a space surrounded by the heating element 2.
Further, the camera 7 and the lighting device 8 are controlled by the controller 6.
The working principle is as follows:
as shown in figure 1, the low temperature protection device in the utility model is mainly used for protecting equipment such as a camera, a heat shield 1 can effectively prevent heat exchange between the internal equipment and the outside, the influence of the external temperature on the internal equipment is reduced as much as possible, when the external temperature is lower, a heating element 2 heats the inside of the heat shield 1, so that the internal temperature of the heat shield 1 is maintained at a normal level, the influence of the too low external temperature on the equipment such as the camera is avoided, when the external temperature is too high or the temperature of the heated inside of the heat shield 1 is too high, a nitrogen circulating pipeline 3 feeds circulating nitrogen into the heat shield 1, further takes away redundant heat, the internal environment is cooled, the temperature of the equipment such as the internal camera is ensured to be maintained at a normal level, the device is suitable for the environment with the temperature range of-196 ℃ to 50 ℃, and the normal use of the camera or other equipment is protected, especially, the method has obvious economic value for expensive equipment such as cameras and the like. In addition, the device overall structure is simple, with low costs, separates heat exchanger 1 and adopts transparently, can realize the biggest visual angle observation of inside camera, also makes things convenient for the external internal condition of observing simultaneously, in time knows the inside situation, and the device need not to carry out follow-up maintenance, and the cost of labor is low.
The double-layer vacuum glass Dewar is of a double-layer glass structure, and the interlayer is vacuumized, so that heat can be effectively insulated. In practical application, the equipment such as a camera is placed in a three-dimensional space surrounded by the flexible film-shaped heating sheets, and the camera can extend out of the three-dimensional space surrounded by the flexible film-shaped heating sheets to shoot an external environment state, so that the equipment is conveniently heated in a low-temperature environment and is prevented from being influenced by external temperature. In practical application, the temperature range in the heat shield 1 can be set, when the temperature measuring element detects that the temperature in the heat shield 1 is lower than the normal temperature range, a signal is transmitted to the controller 6, and the controller 6 controls the heating element 2 to work so as to increase the temperature to the normal range; when the temperature is higher than the normal range, a signal is transmitted to the controller 6, the controller 6 controls the heating element 2 to stop working, and the electromagnetic valve 31 is opened, so that nitrogen gas circularly flows through the inside of the heat shield 1, redundant heat is taken away, and the temperature is maintained in the normal range. The pressure detecting element is used for detecting the internal pressure of the heat shield 1 so as to monitor the internal pressure condition. The temperature and pressure acquisition interface 12 is conveniently connected to the outside, and is convenient for detecting internal temperature and pressure data. The camera 7 is installed in the heat shield 1 through the fixing tool 13, and the low-temperature protection device can effectively protect the camera 7, so that the camera 7 can be applied to environments with different temperatures, particularly low-temperature environments, and the camera 7 can be ensured to be in a normal temperature range. The lighting device 8 can provide lighting for shooting of the camera 7, and shooting and observation are facilitated.
When the temperature control device is used specifically, firstly, the temperature and the temperature control precision are set on the controller according to the use requirements of camera shooting and illumination, and then the temperature is controlled according to the set temperature.
And opening the electromagnetic valve, and closing the electromagnetic valve after nitrogen cleaning. At the same time, the temperature sensor begins to monitor the temperature within the device.
When the ambient temperature is lower than the set temperature, the controller switches on the heating sheet and assists the nitrogen flow to heat the interior of the protection device.
When the temperature sensor in the device reaches the set temperature, the temperature sensor feeds back a temperature signal to control the heating system to be disconnected, so that the heating piece stops heating.
When the temperature in the protection device is higher than the set temperature, the electromagnetic valve is opened, flowing high-purity nitrogen is introduced, and the internal pressure is monitored, so that the redundant heat is taken away, and the normal environmental temperature in the protection device is controlled.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A cryogenic protection device, characterized by: comprises a transparent heat shield (1), and the heat shield (1) is sealed with the outside;
a heating element (2) is arranged in the heat shield (1), and a nitrogen circulating pipeline (3) leading to the interior of the heat shield (1) is further arranged on the heat shield (1).
2. The cryogenic protection device of claim 1, wherein: the heat insulation cover (1) is a double-layer vacuum glass Dewar, and an installation cover (4) is arranged at the opening of the double-layer vacuum glass Dewar.
3. The cryogenic protection device of claim 2, wherein: and a sealing ring (41) is arranged between the mounting cover (4) and the double-layer vacuum glass Dewar.
4. The cryogenic protection device of claim 2, wherein: an outer flange (11) is arranged at the opening of the double-layer vacuum glass Dewar;
the mounting structure is characterized by further comprising a flange ring (5), the mounting cover (4) and the flange ring (5) are located on two sides of the outer flange (11) respectively, and the mounting cover (4) and the flange ring (5) are mounted together through screws or bolts and nuts so as to clamp the outer flange (11) in the middle.
5. The cryogenic protection device of claim 1, wherein: the heating element (2) is a flexible film-shaped heating sheet which encloses a three-dimensional space, and one side of the three-dimensional space is open.
6. The cryogenic protection device of claim 1, wherein: the temperature-measuring device is characterized by further comprising a controller (6), a temperature-measuring element is further arranged in the heat shield (1), the temperature-measuring element is connected to the controller (6), and the heating element (2) is controlled by the controller (6);
and the nitrogen circulating pipeline (3) is provided with an electromagnetic valve (31), and the electromagnetic valve (31) is controlled by the controller (6).
7. The cryogenic protection device of claim 6, wherein: the heat shield (1) is also provided with a pressure detection element, and the pressure detection element is connected to the controller (6).
8. The cryogenic protection device of claim 7, wherein: the temperature and pressure acquisition interface (12) is arranged on the heat shield (1), and the temperature and pressure acquisition interface (12) is internally connected with the temperature measuring element and the pressure detection element.
9. A camera, characterized by: including the cryoprotective device of any one of claims 1 to 8, a fixing tool (13) for mounting the camera (7) is arranged in the heat shield (1), and the camera (7) is mounted in the heat shield (1) by means of the fixing tool (13).
10. The camera of claim 9, wherein: and a lighting device (8) is arranged in the heat insulation cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021759433.2U CN212906024U (en) | 2020-08-20 | 2020-08-20 | Low temperature protection device and camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021759433.2U CN212906024U (en) | 2020-08-20 | 2020-08-20 | Low temperature protection device and camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212906024U true CN212906024U (en) | 2021-04-06 |
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ID=75246716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021759433.2U Active CN212906024U (en) | 2020-08-20 | 2020-08-20 | Low temperature protection device and camera |
Country Status (1)
| Country | Link |
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| CN (1) | CN212906024U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113203083A (en) * | 2021-05-07 | 2021-08-03 | 广东省科学院半导体研究所 | Thermal management system of high-power light source |
-
2020
- 2020-08-20 CN CN202021759433.2U patent/CN212906024U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113203083A (en) * | 2021-05-07 | 2021-08-03 | 广东省科学院半导体研究所 | Thermal management system of high-power light source |
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