Anti-interference fiber grating demodulator case

Abstract

The utility model relates to the technical field of fiber grating demodulator, and disclose anti -interference type fiber gratt demodulator machine case, including the machine case body, the side of machine case body realizes the detachable assembly of side plate through the installation component, the side plate is fixedly connected with the air intake component to the side inside machine case body, the side plate outside is provided with the air intake hole that passes through with air intake component, the air intake component outside is provided with the quick -release detachable filter component, the detachable filter component other end intercommunication has the air outlet box, the air outlet box's outside all distribution has a plurality of directional exhaust's air outlet pipe, the machine case body outside is provided with the air outlet, the machine case body outside is provided with a plurality of fiber grating plug interface. This anti -interference type fiber gratt demodulator machine case, possess can improve the heat dissipation effect of machine case inside, and then improved device whole's service life advantage etc.

Description

Technical Field

[0001] This utility model relates to the field of fiber Bragg grating demodulator technology, specifically to an anti-interference fiber Bragg grating demodulator chassis. Background Technology

[0002] A fiber Bragg grating demodulator chassis is a dedicated equipment enclosure for a fiber Bragg grating demodulator. It primarily provides a physical mounting framework and protective space for the core components of the demodulator. Its structural design must meet the optical path and circuit layout requirements of the demodulator. It often features heat dissipation channels and cable interface adaptations. Some models also improve environmental adaptability through shielding structures or vibration-resistant designs, ensuring stable operation of the demodulator under various working conditions. It is an important hardware carrier for signal acquisition and demodulation in fiber Bragg grating sensing systems and is widely used in fields such as structural health monitoring and stress-strain measurement.

[0003] Most existing demodulator chassis use ventilation openings on the outer shell for heat dissipation, or are supplemented by simple axial fans. However, simple ventilation openings can easily lead to poor air circulation inside the chassis. When dealing with highly integrated, high-power devices, the heat dissipation efficiency is low, and the heat of core components cannot be dissipated in time, resulting in degraded component performance, shortened lifespan, and inaccurate monitoring data. Therefore, an anti-interference fiber Bragg grating demodulator chassis is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an anti-interference fiber Bragg grating demodulator chassis, which has the advantages of improving the heat dissipation effect inside the chassis, thereby increasing the overall service life of the device. It solves the problem that most existing demodulator chassis use ventilation openings on the outer shell for heat dissipation, or are supplemented by simple axial fans. However, the simple ventilation opening design is prone to poor air circulation inside the chassis. For highly integrated, high-power devices, the heat dissipation efficiency is low, and the heat of core components cannot be dissipated in time, resulting in the degradation of component performance, shortened lifespan, and inaccurate monitoring data.

[0006] (II) Technical Solution

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: an anti-interference fiber optic grating demodulator chassis, including a chassis body, the side of the chassis body is detachably assembled by a mounting component, an air inlet component is fixedly connected to the side of the side plate facing the inside of the chassis body, an air inlet hole communicating with the air inlet component is opened on the outer side of the side plate, a quick-release detachable filter component is provided on the outer side of the air inlet component, the other end of the detachable filter component is connected to an air outlet box, a plurality of directional exhaust air outlet pipes are evenly distributed on the outer side of the air outlet box, and an air outlet is opened on the outer side of the chassis body.

[0008] The beneficial effects of this utility model are:

[0009] This anti-interference fiber Bragg grating demodulator chassis has the advantage of improving heat dissipation inside the chassis, thereby increasing the overall service life of the device.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, the outer side of the chassis is provided with multiple fiber optic grating interfaces, and the bottom of the chassis is fixedly connected with four support legs arranged in a rectangular array, and the bottom of the support legs is fixedly connected with anti-slip pads.

[0012] The advantage of adopting the above-mentioned further solution is that the fiber Bragg grating interface facilitates the insertion of fiber Bragg gratings.

[0013] Furthermore, both the chassis body and the side panel adopt a composite shielding structure. The composite shielding structure includes an aluminum alloy layer, an insulating gasket, and a molybdenum alloy layer from the outside to the inside. A sealing ring is fixedly connected to the outside of the side panel and is pressed against the outside of the chassis body.

[0014] The beneficial effect of adopting the above-mentioned further solution is that the use of composite shielding structure for both the chassis and side panels can improve the overall anti-interference effect of the device.

[0015] Furthermore, the mounting assembly includes a mounting shell fixedly connected to the inside of the chassis, a mounting block fixedly connected to the outside of the side panel and inserted into the inside of the mounting shell, a threaded rod rotatably connected to the outside of the mounting block via a drive rod, and a connecting threaded sleeve adapted to the threaded rod's outer thread fixedly connected to the outside of the mounting shell.

[0016] The advantage of adopting the above-mentioned further solution is that the installation components facilitate the disassembly of the side panels.

[0017] Furthermore, the air intake assembly includes an air intake pipe fixedly connected to the side plate on one side inside the chassis and a negative pressure fan fixedly connected to the inside of the air intake pipe, wherein the inside of the air intake pipe is arc-shaped.

[0018] The advantage of adopting the above-mentioned further solution is that the air intake assembly can perform cooling operations on the inside of the chassis.

[0019] Furthermore, the detachable filter assembly includes a first mounting threaded sleeve rotatably connected to the outside of the air inlet assembly, a second mounting threaded sleeve rotatably connected to the outside of the air outlet box, a filter box threadedly connected to the inside of the first and second mounting threaded sleeves, and a three-layer filter screen fixedly connected to the inside of the filter box.

[0020] The advantage of adopting the above-mentioned further solution is that the detachable filter assembly can facilitate the disassembly of the three-layer filter screen.

[0021] Furthermore, a dustproof net is fixedly connected to the inner side of the air outlet, a connecting fan is fixedly connected to the inner side of the air outlet pipe, a protective rod is fixedly connected to the outer side of the air outlet box, and a protective sleeve that slides with the protective rod is fixedly connected to the outer side of the side plate. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a side view of the structure of this utility model;

[0024] Figure 3 This is a half-sectional view of the structure of this utility model;

[0025] Figure 4 This is a connection diagram of the fan and the air outlet pipe of this utility model;

[0026] Figure 5 This is a connection diagram of the protective rod and protective sleeve of this utility model.

[0027] In the diagram: 1. Chassis; 2. Mounting components; 21. Mounting shell; 22. Mounting block; 23. Drive rod; 24. Threaded rod; 25. Connecting threaded sleeve; 3. Side plate; 4. Air inlet assembly; 41. Air inlet duct; 42. Negative pressure fan; 5. Air inlet hole; 6. Removable filter assembly; 61. First mounting threaded sleeve; 62. Second mounting threaded sleeve; 63. Filter box; 64. Three-layer filter screen; 7. Air outlet box; 8. Air outlet duct; 9. Air outlet; 10. Fiber optic grating connector; 11. Support leg; 12. Dustproof net; 13. Connecting fan; 14. Protective rod; 15. Protective sleeve. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the embodiments, by Figure 1-5Provided is an anti-interference fiber Bragg grating demodulator chassis. This utility model includes a chassis body 1. The side of the chassis body 1 is detachably assembled with a side panel 3 via a mounting component 2. An air inlet component 4 is fixedly connected to the side of the side panel 3 facing the inside of the chassis body 1. An air inlet hole 5 communicating with the air inlet component 4 is opened on the outside of the side panel 3. A quick-release detachable filter component 6 is provided on the outside of the air inlet component 4. The other end of the detachable filter component 6 is connected to an air outlet box 7. Multiple directional exhaust air outlet pipes 8 are evenly distributed on the outside of the air outlet box 7. An air outlet 9 is opened on the outside of the chassis body 1.

[0030] This device is designed to allow for the removal of the side panel 3, facilitating maintenance of the internal components. A handle can also be installed on the outside of the side panel 3 for easy installation. The combination of the air intake assembly 4, the removable filter assembly 6, the air outlet box 7, and the air outlet pipe 8 forms a complete airflow and heat dissipation path. External air enters the chassis after being filtered through the air intake hole 5, the air intake assembly 4, and the removable filter assembly 6, and is then discharged from the air outlet 9 through the air outlet box 7 and the air outlet pipe 8. This ensures a good heat dissipation environment for the equipment inside the chassis, while the filter assembly prevents dust and other impurities from entering the chassis and affecting equipment operation.

[0031] In this embodiment, multiple fiber optic grating interfaces 10 are provided on the outside of the chassis 1, and four support legs 11 arranged in a rectangular array are fixedly connected to the bottom of the chassis 1. Anti-slip pads are fixedly connected to the bottom of the support legs 11.

[0032] The fiber optic grating interface 10 facilitates the connection of the fiber optic grating to the internal equipment of the chassis for signal transmission; the four support legs 11 arranged in a rectangular array, along with anti-slip pads, enhance the stability of the chassis when placed, prevent the chassis from sliding or tipping over, and ensure the safe operation of the equipment.

[0033] In this embodiment, both the chassis 1 and the side panel 3 adopt a composite shielding structure. The composite shielding structure includes an aluminum alloy layer, an insulating gasket, and a molybdenum alloy layer from the outside to the inside. A sealing ring that is pressed against the outside of the chassis 1 is fixedly connected to the outside of the side panel 3.

[0034] The aluminum alloy layer provides mechanical strength and corrosion resistance, the insulating gasket provides insulation, and the permalloy layer provides electromagnetic shielding, effectively reducing the impact of external electromagnetic interference on the electronic components inside the chassis. The sealing ring enhances the chassis's airtightness, preventing dust, moisture, and other contaminants from entering the chassis and protecting the equipment's normal operation.

[0035] In this embodiment, the mounting assembly 2 includes a mounting shell 21 fixedly connected to the inside of the chassis 1, and a mounting block 22 fixedly connected to the outside of the side plate 3 and inserted into the inside of the mounting shell 21. The outside of the mounting block 22 is rotatably connected to a threaded rod 24 via a drive rod 23. A connecting threaded sleeve 25 adapted to the threaded thread on the outside of the mounting shell 21 is fixedly connected to the outside of the mounting shell 21.

[0036] By controlling the drive rod 23 to drive the threaded rod 24 to rotate, and utilizing the helical transmission principle of the threaded rod 24 and the connecting threaded sleeve 25, a quick and stable detachable connection between the side plate 3 and the chassis 1 is achieved, which greatly improves the convenience of installing and removing the side plate 3.

[0037] In this embodiment, the air intake assembly 4 includes an air intake pipe 41 fixedly connected to the side plate 3 and located inside the chassis 1 on one side, and a negative pressure fan 42 fixedly connected to the inside of the air intake pipe 41. The inside of the air intake pipe 41 is arc-shaped.

[0038] The negative pressure fan 42 provides power to actively introduce air, meeting the air volume requirements for heat dissipation of the equipment inside the chassis; the arc design on the inner side of the air inlet pipe 41, based on aerodynamic principles, reduces airflow resistance, allowing air to enter the chassis more smoothly, improving air intake efficiency, and thus enhancing the chassis's heat dissipation effect.

[0039] In this embodiment, the detachable filter assembly 6 includes a first mounting threaded sleeve 61 rotatably connected to the outside of the air inlet assembly 4, a second mounting threaded sleeve 62 rotatably connected to the outside of the air outlet box 7, a filter box 63 threadedly connected to the inside of the first mounting threaded sleeve 61 and the second mounting threaded sleeve 62, and a three-layer filter screen 64 fixedly connected to the inside of the filter box 63. The three-layer filter screen 64 includes a large filter screen, a medium filter screen, and a small filter screen with different pore sizes. The large filter screen, the medium filter screen, and the small filter screen are distributed from the outside to the inside inside the filter box 63.

[0040] The detachable filter assembly 6's structural design makes the disassembly and installation of the filter box 63 simple and convenient, facilitating regular maintenance of the three-layer filter screen 64, ensuring that the filter assembly continuously and effectively filters dust, particles and other impurities in the air, maintaining a clean operating environment inside the chassis, and protecting the normal operation of the equipment.

[0041] In this embodiment, a dustproof net 12 is fixedly connected to the inner side of the air outlet 9, a connecting fan 13 is fixedly connected to the inner side of the air outlet 8, a protective rod 14 is fixedly connected to the outer side of the air outlet box 7, and a protective sleeve 15 that slides with the protective rod 14 is fixedly connected to the outer side of the side plate 3.

[0042] The dustproof net 12 effectively prevents external dust from entering the chassis through the air outlet 9, avoiding dust from affecting the internal equipment; the fan 13 connected inside the air outlet duct 8 enhances the power of air exhaust, accelerates the air flow speed inside the chassis, realizes the rapid exhaust of hot air, and significantly improves the heat dissipation performance of the chassis; the protective rod 14 and protective cover 15 can improve the stability of the air outlet box 7.

[0043] Working principle:

[0044] When heat dissipation is required inside the chassis 1, the negative pressure fan 42 can be activated to filter the air through the three-layer filter 64, which then enters the filter box 63. By connecting the fan 13, the air can be accelerated to be discharged into the inside of the chassis 1, which can quickly dissipate heat from the inside of the chassis 1 and improve the overall service life of the device.

[0045] When the three-layer filter screen 64 needs to be cleaned, rotating the drive rod 23 allows the threaded rod 24 to be removed from the inside of the connecting threaded sleeve 25. Moving the side plate 3 allows the mounting block 22 to be removed from the mounting shell 21, and the detachable filter assembly 6 can be removed. Then, by twisting the first mounting threaded sleeve 61 and the second mounting threaded sleeve 62, the filter box 63 can be removed, making it convenient to clean the three-layer filter screen 64 inside. After cleaning, the filter box 63 is installed on the outside of the side plate 3, and then the side plate 3 is installed inside the chassis 1.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-interference fiber Bragg grating demodulator chassis, comprising a chassis housing (1), characterized in that: The side of the chassis (1) is detachably assembled with the side panel (3) by the mounting component (2). The side panel (3) facing the inside of the chassis (1) is fixedly connected with the air inlet component (4). The side panel (3) has an air inlet hole (5) that communicates with the air inlet component (4) on the outside. The air inlet component (4) is provided with a quick-release detachable filter component (6). The other end of the detachable filter component (6) is connected to the air outlet box (7). The air outlet box (7) has multiple directional exhaust pipes (8) evenly distributed on the outside. The chassis (1) has an air outlet (9) on the outside.

2. The anti-interference fiber Bragg grating demodulator chassis according to claim 1, characterized in that: The chassis (1) has multiple fiber optic grating interfaces (10) on its outer side. The bottom of the chassis (1) is fixedly connected to four support legs (11) arranged in a rectangular array. The bottom of the support legs (11) is fixedly connected to anti-slip pads.

3. The anti-interference fiber Bragg grating demodulator chassis according to claim 1, characterized in that: The chassis (1) and the side panel (3) both adopt a composite shielding structure. The composite shielding structure includes an aluminum alloy layer, an insulating gasket and a molybdenum alloy layer from the outside to the inside. The side panel (3) is fixedly connected to a sealing ring that is pressed against the outside of the chassis (1).

4. The anti-interference fiber Bragg grating demodulator chassis according to claim 1, characterized in that: The mounting assembly (2) includes a mounting shell (21) fixedly connected to the inside of the chassis (1) and a mounting block (22) fixedly connected to the outside of the side plate (3) and inserted into the inside of the mounting shell (21). The outside of the mounting block (22) is rotatably connected to a threaded rod (24) via a drive rod (23). The outside of the mounting shell (21) is fixedly connected to a connecting threaded sleeve (25) that is compatible with the threaded rod (24).

5. The anti-interference fiber Bragg grating demodulator chassis according to claim 1, characterized in that: The air intake assembly (4) includes an air intake pipe (41) fixedly connected to the side plate (3) located inside the chassis (1) on one side, and a negative pressure fan (42) fixedly connected to the inside of the air intake pipe (41). The inside of the air intake pipe (41) is arc-shaped.

6. The anti-interference fiber Bragg grating demodulator chassis according to claim 1, characterized in that: The detachable filter assembly (6) includes a first mounting threaded sleeve (61) rotatably connected to the outside of the air inlet assembly (4), a second mounting threaded sleeve (62) rotatably connected to the outside of the air outlet box (7), a filter box (63) threadedly connected to the inside of the first mounting threaded sleeve (61) and the second mounting threaded sleeve (62), and a three-layer filter screen (64) fixedly connected to the inside of the filter box (63).

7. The anti-interference fiber Bragg grating demodulator chassis according to claim 1, characterized in that: A dustproof net (12) is fixedly connected to the inner side of the air outlet (9), and a connecting fan (13) is fixedly connected to the inner side of the air outlet pipe (8).

8. The anti-interference fiber Bragg grating demodulator chassis according to claim 1, characterized in that: A protective rod (14) is fixedly connected to the outside of the air outlet box (7), and a protective sleeve (15) that slides with the protective rod (14) is fixedly connected to the outside of the side plate (3).

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