Photonic crystal double-band-pass filter

Abstract

The utility model relates to the technical field of filters, in particular to a photonic crystal double-band-pass filter which comprises a filter body, sliding rails, connecting covers and a supporting plate, the connecting covers are symmetrically installed on the outer walls of the two sides of the filter body, the sliding rails are installed on the upper sides and the lower sides of the inner walls of the connecting covers, and sliding blocks are installed in the sliding rails in a sliding mode. A supporting plate is installed on the outer wall of the end, penetrating through the sliding rail, of the sliding block, a connector body is installed in the supporting plate, pulling force is prevented from directly acting on the connector body and a crystal head of the connecting line, damage to the connector body and the crystal head of the connecting line is reduced, the service life of equipment is guaranteed, and the connecting stability of the connector body and the connecting line is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, and particularly relates to a photonic crystal dual-bandpass filter. Background Art

[0002] A photonic crystal bandpass filter is a device that utilizes the optical properties of a photonic crystal to allow light within a specific wavelength range to pass through while blocking light of other wavelengths. By adjusting the structure of the photonic crystal, the photonic crystal bandpass filter controls the propagation of light using the photonic localization effect. Introducing defects into the photonic crystal can form specific transmission peaks, thereby achieving a high transmittance for light of a specific wavelength.

[0003] The publication number CN215119191U discloses a broadband microwave bandpass filter, which includes a filter, a plurality of inlet ends and outlet ends. Fixing components are arranged inside both the inlet ends and the outlet ends. Through grooves are formed in the fronts of the inlet ends and the outlet ends, and sliding grooves are formed in the tops of the inlet ends and the outlet ends. The sliding grooves are adapted to the fixing components. Grooves for placing electric wires are formed in the fronts of the inlet ends and the outlet ends, and the grooves are adapted to the electric wires. The fixing component includes a sliding rod, and a limiting plate is fixedly connected to the bottom of the sliding rod. The limiting plate is adapted to the electric wire, and inserting blocks are fixedly connected to both sides of the bottom of the limiting plate. Through the mutual cooperation of the structures such as the sliding rod, the limiting plate, the inserting block and the screw in the utility model, the electric wire can be effectively fixed, so that the electric wire is not easy to fall off, the fixing ability is strong, and the structure is simple and the use is convenient.

[0004] During the use of the prior art CN215119191U, although there are many benefits, there are still the following problems. Its ability to relieve pulling force is poor. When a staff member inserts a connecting wire into the connector and assembles the other end of the connecting wire, a certain degree of pulling force will be applied between the connecting wire and the connector. This pulling force will affect the electrical connection stability between the connector and the connecting wire, and will cause damage to the connecting wire and the connector, affecting the service life. Summary of the Utility Model

[0005] Aiming at the problems in the prior art, the utility model provides a photonic crystal dual-bandpass filter.

[0006] The technical solution adopted by the utility model to solve its technical problems is a photonic crystal dual-bandpass filter, which includes a filter body, a slide rail, a connecting cover and a support plate. Connecting covers are symmetrically installed on the outer walls on both sides of the filter body. Slide rails are installed on the upper and lower sides of the inner wall of the connecting cover. Sliders are slidably installed inside the slide rails. One end of the slider penetrates through the outer wall of the slide rail and is installed with a support plate. A connector body is installed inside the support plate.

[0007] By adopting the above technical solution, the connection cover shields the joint body, and the joint body can move horizontally through the slide rail and the slider.

[0008] Specifically, fixing brackets are installed at the lower ends of the outer walls on both sides of the filter body, and fixing grooves are formed on the outer walls on both sides of the fixing brackets.

[0009] By adopting the above technical solution, an external bolt passes through the fixing groove, and can fix the fixing bracket to keep the filter body in a stable position at the use position.

[0010] Specifically, wire row interfaces are provided on the outer walls of both the joint body and the filter body. A wire row body is arranged inside the wire row interface, and an insertion groove is formed on the outer wall of one side of the joint body.

[0011] By adopting the above technical solution, the joint body can be connected to the filter body through the wire row interface and the wire row body, and the crystal head of the external connecting wire can be inserted into the insertion groove, so that the signal of the connecting wire can be transmitted to the inside of the filter body through the wire row body. The wire row body is designed in a U shape.

[0012] Specifically, first limiting plates are installed on both sides of the inner wall of the connection cover. The first limiting plates are designed in a rectangular shape and are in contact with the outer wall of the support plate.

[0013] By adopting the above technical solution, the first limiting plates limit the movement track of the support plate to prevent the support plate from squeezing the wire row body and the wire row interface, and ensure the service life of the wire row body.

[0014] Specifically, a spring is arranged inside the slide rail, and the slider is elastically connected to the inner wall of the slide rail through the spring.

[0015] By adopting the above technical solution, the spring force can ensure the relative stability of the position of the slider, thereby ensuring the relative stability of the position of the support plate inside the connection cover.

[0016] Specifically, second limiting plates are installed on both sides of the inner wall of the connection cover, and a buffer rod is installed on the outer wall of one side of the second limiting plate.

[0017] By adopting the above technical solution, the second limiting plates limit the limit of the moving distance of the support plate to prevent the support plate from moving out of the connection cover, and the buffer rod blocks the support plate to prevent the support plate from directly contacting the second limiting plates.

[0018] Specifically, heat dissipation holes are formed on the outer wall of the filter body and are distributed in parallel at equal intervals. The inner wall of the heat dissipation hole is designed in a rectangular shape.

[0019] By adopting the above technical solution, the temperature inside the filter body can dissipate through the heat dissipation holes, and the filter body can be cooled.

[0020] Advantages of the present utility model:

[0021] (1) For the photonic crystal dual-bandpass filter of the present utility model, the joint body forms a connection loop with the filter body through the wire row body and the wire row interface. The photonic crystal structure inside the filter body can ensure a high transmittance of light with a specific wavelength, thereby achieving a low bit error rate and high resolution for light. Moreover, the staff can fix the fixing frame by passing an external bolt through the fixing groove to keep the filter body stable in the use position.

[0022] (2) For the photonic crystal dual-bandpass filter of the present utility model, the joint body can move along with the connecting wire, providing a buffer distance for the pulling force of the connecting wire, avoiding the direct action of the pulling force on the crystal head of the joint body and the connecting wire, reducing the damage to the crystal head of the joint body and the connecting wire, ensuring the service life of the device, and ensuring the connection stability between the joint body and the connecting wire. Description of the Drawings

[0023] The present utility model will be further described below with reference to the drawings and embodiments.

[0024] Figure 1 It is a schematic cross-sectional view of the connection cover structure of the present utility model;

[0025] Figure 2 It is a schematic external view of the filter body structure of the present utility model;

[0026] Figure 3 It is an enlarged schematic view of the slide rail structure of the present utility model;

[0027] Figure 4 It is an enlarged schematic view of the support plate structure of the present utility model.

[0028] In the figure: 1. Filter body; 11. Fixing frame; 12. Heat dissipation hole; 13. Connection cover; 14. First limiting plate; 15. Second limiting plate; 16. Buffer rod; 17. Wire row interface; 18. Wire row; 2. Slide rail; 21. Slide block; 22. Spring; 23. Support plate; 24. Joint body; 25. Insertion slot. Detailed Embodiments

[0029] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0030] To save manpower and improve efficiency, as an embodiment of the present utility model, asFigure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, the photonic crystal dual-bandpass filter described in the present invention includes a filter body 1, a slide rail 2, a connecting cover 13 and a support plate 23. The connecting covers 13 are symmetrically installed on the outer walls of both sides of the filter body 1, and the slide rails 2 are installed on the upper and lower sides of the inner wall of the connecting cover 13. A slider 21 is slidably installed inside the slide rail 2. The slider 21 passes through the outer wall of one end of the slide rail 2 and is installed with a support plate 23. The connector body 24 is installed inside the support plate 23.

[0031] When in use, the connection cover 13 shields the joint body 24 , and the joint body 24 can move horizontally through the slide rail 2 and the slider 21 .

[0032] In order to fix the filter body 1, for example, Figure 2 As shown, fixing brackets 11 are installed at the lower ends of the outer walls on both sides of the filter body 1, and fixing grooves are opened on the outer walls on both sides of the fixing brackets 11.

[0033] When in use, the external bolts pass through the fixing slots to fix the fixing bracket 11 and keep the filter body 1 stable in the use position.

[0034] For signal transmission, for example, Figure 1 As shown, the outer walls of the connector body 24 and the filter body 1 are both provided with a wire bus interface 17 , a wire bus body 18 is provided inside the wire bus interface 17 , and an insertion slot 25 is provided on one side of the outer wall of the connector body 24 .

[0035] When in use, the connector body 24 can be connected to the filter body 1 through the wire array interface 17 and the wire array body 18, and the crystal head of the external connecting line can be inserted into the insertion slot 25, so that the signal of the connecting line can be transmitted to the inside of the filter body 1 through the wire array body 18. The wire array body 18 adopts a U-shaped design.

[0036] In order to limit the moving distance, for example, Figure 1 As shown, first limiting plates 14 are installed on both sides of the inner wall of the connection cover 13 . The first limiting plates 14 are designed in a rectangular shape and are in contact with the outer wall of the support plate 23 .

[0037] When in use, the first limiting plate 14 limits the movement trajectory of the support plate 23 to prevent the support plate 23 from squeezing the cable array body 18 and the cable array interface 17 , thereby ensuring the service life of the cable array body 18 .

[0038] In order to keep the position relatively stable, for example, Figure 3 As shown, a spring 22 is provided inside the slide rail 2 , and the slider 21 is elastically connected to the inner wall of the slide rail 2 via the spring 22 .

[0039] During use, the elastic force of the spring 22 can ensure the relative stability of the position of the slider 21, thereby ensuring the relative stability of the position of the support plate 23 inside the connection cover 13. The elastic force of the spring 22 can push the slider 21 and the support plate 23 to reset.

[0040] To limit the moving distance, exemplarily, as Figure 1 shown, second limiting plates 15 are installed on both sides of the inner wall of the connection cover 13, and a buffer rod 16 is installed on the outer wall of one side of the second limiting plate 15.

[0041] During use, the second limiting plate 15 limits the limit of the moving distance of the support plate 23 to prevent the support plate 23 from moving out of the connection cover 13, and the buffer rod 16 blocks the support plate 23 to prevent the support plate 23 from directly contacting the second limiting plate 15.

[0042] To dissipate heat, exemplarily, as Figure 2 shown, heat dissipation holes 12 are formed in the outer wall of the filter body 1 at equidistant parallel intervals, and the inner wall of the heat dissipation holes 12 is designed in a rectangular shape.

[0043] During use, the temperature inside the filter body 1 can dissipate through the heat dissipation holes 12, and the filter body 1 can be cooled.

[0044] When the present utility model is in use, a staff member inserts the crystal head of an external connecting wire into the insertion slot 25, so that the connecting wire can form a connection with the joint body 24, and the joint body 24 forms a connection loop with the filter body 1 through the wire row body 18 and the wire row interface 17; the photonic crystal structure inside the filter body 1 can ensure a high transmittance of light with a specific wavelength, thereby achieving a low bit error rate and high resolution for light;

[0045] The staff member can fix the fixing frame 11 by passing an external bolt through the fixing slot, and keep the filter body 1 in a stable position at the use position.

[0046] When the external connecting wire is pulled, the support plate 23 and the joint body 24 move through the slider 21 and the slide rail 2, so that the joint body 24 can move along with the connecting wire, and a buffer distance can be provided for the pulling force of the connecting wire, preventing the pulling force from directly acting on the joint body 24 and the crystal head of the connecting wire;

[0047] The first limiting plate 14 and the second limiting plate 15 limit the moving distance of the support plate 23 to prevent the support plate 23 from moving out of the connection cover 13, and the buffer rod 16 buffers the limit position of the movement of the support plate 23 to prevent the support plate 23 from directly contacting the second limiting plate 15 and preventing the impact force of the contact between the support plate 23 and the second limiting plate 15 from being transmitted to the joint body 24.

[0048] It should be noted that the present utility model is a photonic crystal dual-bandpass filter, and the components in the present utility model are all components known to those skilled in the art, and their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0049] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the present utility model. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A photonic crystal dual-bandpass filter, characterized in that: The invention comprises a filter body (1), a slide rail (2), a connection cover (13) and a support plate (23); the connection covers (13) are symmetrically mounted on the outer walls of both sides of the filter body (1); the slide rails (2) are mounted on the upper and lower sides of the inner wall of the connection cover (13); a slider (21) is slidably mounted inside the slide rail (2); the slider (21) passes through the outer wall of one end of the slide rail (2); a support plate (23) is mounted inside the support plate (23); and a joint body (24) is mounted inside the support plate (23).

2. A photonic crystal dual-bandpass filter according to claim 1, characterized in that: Fixing frames (11) are installed at the lower ends of the outer walls on both sides of the filter body (1), and fixing grooves are provided on the outer walls on both sides of the fixing frame (11).

3. A photonic crystal dual-bandpass filter according to claim 1, characterized in that: The outer walls of the connector body (24) and the filter body (1) are both provided with a wire row interface (17), a wire row body (18) is provided inside the wire row interface (17), and an insertion groove (25) is provided on one side of the outer wall of the connector body (24).

4. A photonic crystal dual-bandpass filter according to claim 1, characterized in that: First limiting plates (14) are installed on both sides of the inner wall of the connection cover (13); the first limiting plates (14) are designed in a rectangular shape; and the first limiting plates (14) are in contact with the outer wall of the support plate (23).

5. A photonic crystal dual-bandpass filter according to claim 1, characterized in that, A spring (22) is provided inside the slide rail (2), and the slider (21) is elastically connected to the inner wall of the slide rail (2) via the spring (22).

6. The photonic crystal dual-bandpass filter according to claim 1, wherein Second limiting plates (15) are installed on both sides of the inner wall of the connection cover (13), and a buffer rod (16) is installed on the outer wall of one side of the second limiting plate (15).

7. A photonic crystal dual-bandpass filter according to claim 1, characterized in that, The outer wall of the filter body (1) is provided with equidistant and parallel heat dissipation holes (12), and the inner walls of the heat dissipation holes (12) are designed in a rectangular shape.

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