A millimeter wave down conversion device and a millimeter wave wideband frequency conversion equipment

Abstract

This utility model relates to the technical field of millimeter-wave down-converter devices, and discloses a millimeter-wave down-converter device and a millimeter-wave broadband frequency converter. It aims to solve the problem of heat buildup in existing millimeter-wave down-converters, which can easily lead to device failure under high-frequency operation. This utility model utilizes a tree-like fractal structure for the heat dissipation fins. This fractal structure disrupts the laminar boundary layer, increasing the heat transfer coefficient by 2.8 times. The fin material is a copper-graphene composite material. Simultaneously, a shape memory alloy thermistor push rod is embedded at the bottom. When the temperature is >60℃, the shape memory alloy push rod increases the fin tilt angle by 15°, increasing the heat dissipation area by 30%. Furthermore, by rotating the handwheel and using the threaded connection, the cleaning rack can be moved back and forth on the surface of the filter screen, thus periodically cleaning the dust and preventing long-term dust blockage of the filter screen, which would negatively impact the subsequent heat dissipation effect and the device's overall performance.

Description

Technical Field

[0001] This utility model relates to the field of millimeter-wave downconverter technology, and in particular to a millimeter-wave downconverter device and a millimeter-wave broadband frequency converter. Background Technology

[0002] A millimeter-wave downconverter is a key radio frequency device used in millimeter-wave communication, radar, remote sensing and other fields. Its core function is to convert high-frequency millimeter-wave signals into lower-frequency intermediate frequency or baseband signals for subsequent signal processing, analysis or transmission.

[0003] The existing technical solutions have the following shortcomings:

[0004] Firstly, existing millimeter-wave downconverters often have heat dissipation slots in their structure to achieve efficient heat dissipation. To prevent dust particles, fibrous impurities, and other foreign objects from entering the equipment through these slots, a protective filter network is usually placed over the outside of the slots. While this filter network can form a physical barrier with its fine mesh structure, effectively blocking solid impurities from entering the equipment cavity, when exposed to the external environment for a long time, airborne dust particles will gradually accumulate on the filter surface. As the usage time increases, this dust will gradually clog the filter pores, which not only significantly increases airflow resistance and reduces heat dissipation efficiency, but also reduces filtration accuracy due to the accumulation of contaminants on the filter material surface, resulting in a decrease in the ability to intercept subsequent impurities.

[0005] Secondly, existing millimeter-wave down-converters often experience continuous vibration or shaking during actual operation due to mechanical vibrations generated by the integrated high-frequency components or oscillations transmitted from external power sources. This dynamic displacement caused by machine operation leads to periodic collisions and friction between the equipment and the mounting surface, resulting in significant mechanical noise, especially in high-frequency operation or scenarios where multiple devices operate collaboratively. Furthermore, continuous unstable vibrations disrupt the equipment's original static equilibrium, subjecting internal precision electronic components to additional alternating stress, particularly at connection cables and connectors, where poor contact is a potential problem.

[0006] Therefore, we need to design a millimeter-wave downconversion device and a millimeter-wave broadband frequency conversion device to solve the problems mentioned above. Utility Model Content

[0007] The technical problem to be solved by this utility model is to overcome the defect that the heat accumulation of existing millimeter-wave downconverters under high-frequency operation is prone to cause device failure. This utility model proposes a millimeter-wave downconverter device and a millimeter-wave broadband frequency converter.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a millimeter-wave down-converter device and a millimeter-wave broadband frequency converter, including a millimeter-wave down-converter. A terminal block is fixed at the front end of the millimeter-wave down-converter. A heat dissipation groove is opened inside the millimeter-wave down-converter, and heat dissipation fins are placed inside the heat dissipation groove. Three sets of heat dissipation fins are arranged. Heat dissipation secondary fins are fixed on both sides of the heat dissipation fins. A filter screen is connected to the front end of the heat dissipation groove, and a cleaning rack is movably connected to the front end of the filter screen. A locking block is fixed on both sides of the filter screen near the millimeter-wave down-converter. A corresponding locking slot is opened on both sides of the millimeter-wave down-converter near the filter screen, and the locking slot and the locking block are connected by magnetic adsorption.

[0009] Preferably, the size of the card block matches the size of the card slot, and the cross-sections of both the card block and the card slot are trapezoidal.

[0010] Preferably, the cleaning frame has cleaning bristles distributed on its inner side, the filter screen has an internal groove, and a threaded rod is rotatably connected inside the internal groove. A threaded sleeve is fitted on the outer side of the threaded rod, and the threaded sleeve is fixedly connected to the cleaning frame. A movable block is fixed at one end of the cleaning frame near the filter screen, and a movable groove is opened at one end of the filter screen near the cleaning frame. The movable block is slidably connected inside the movable groove.

[0011] Preferably, the millimeter-wave downconverter has protective corners fixed at its four corners. These corners are made of rubber and have a certain buffering and impact resistance as well as a certain wear resistance.

[0012] Preferably, the millimeter-wave downconverter is fixed with fixed support angles in four directions below it, and multiple anti-slip protrusions are distributed below the fixed support angles. The cross-sections of these protrusions are all circular, and they are distributed in a ring shape below the fixed support angles.

[0013] Preferably, the heat dissipation fins have a tree-like fractal structure, with a height of mm and a bifurcation angle of °, and a shape memory alloy thermal push rod embedded at the bottom.

[0014] Compared with the prior art, the beneficial effects of this utility model include:

[0015] 1. The heat dissipation fins are arranged in a tree-like fractal structure. The fractal structure disrupts the laminar boundary layer, increasing the heat transfer coefficient by 2.8 times. The fin material is a copper-graphene composite material. At the same time, a shape memory alloy thermistor push rod is embedded at the bottom. When the temperature is >60℃, the shape memory alloy push rod increases the fin tilt angle by 15°, increasing the heat dissipation area by 30%. By rotating the handwheel and through the threaded connection, the cleaning rack can be moved back and forth on the surface of the filter screen, thereby regularly cleaning the dust and preventing the filter screen from becoming clogged by dust over a long period of time, which would affect the subsequent heat dissipation effect and have an adverse effect on the device.

[0016] 2. By setting up protective corner structures, a comprehensive protection mechanism can be formed for the corners of the device. In the event of a drop, the impact force is effectively buffered, preventing damage such as cracking and deformation of the corners due to direct impact. At the same time, with the synergy of fixed support corners and anti-slip protrusions, a stable support system can be built between the device and the contact surface. The multiple fixing structures enhance the fit between the device and the contact surface, thereby effectively resisting the risk of displacement caused by vibration, external collisions and other factors during device operation. This comprehensively ensures the stability and reliability of the device during operation. This design that combines protection and fixing not only improves the device's drop resistance from a protective perspective, but also provides a solid guarantee for the continuous and efficient operation of the device from a stability perspective, achieving a dual optimization of the device's safety and stability. Attached Figure Description

[0017] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0019] Figure 2 This is a top view cross-sectional structural diagram of the heat dissipation mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the bottom structure of the millimeter-wave downconverter of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the heat dissipation fins of this utility model.

[0022] The following are the labels in the diagram: 1. Millimeter-wave downconverter; 2. Terminal block; 3. Filter screen; 4. Handwheel; 5. Heat sink; 6. Heat sink fins; 7. Heat sink secondary fins; 8. Locking block; 9. Magnet; 10. Locking slot; 11. Internal slot; 12. Threaded rod; 13. Threaded sleeve; 14. Cleaning rack; 15. Cleaning brush bristles; 16. Movable block; 17. Movable slot; 18. Protective corner; 19. Fixed support corner; 20. Anti-slip protrusion. Detailed Implementation

[0023] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0024] To address the technical challenge of overcoming the drawback of existing millimeter-wave downconverters where heat buildup at high frequencies easily leads to device failure, the following solution is disclosed, specifically as follows: Figures 1-4 As shown:

[0025] A millimeter-wave down-converter and a millimeter-wave broadband frequency converter include a millimeter-wave down-converter 1. A terminal block 2 is fixed at the front end of the millimeter-wave down-converter 1. A heat dissipation groove 5 is opened inside the millimeter-wave down-converter 1, and heat dissipation fins 6 are placed inside the heat dissipation groove 5. Three sets of heat dissipation fins 6 are arranged. Heat dissipation secondary fins 7 are fixed on both sides of the heat dissipation fins 6. A filter screen 3 is connected to the front end of the heat dissipation groove 5, and a cleaning rack 14 is movably connected to the front end of the filter screen 3. A locking block 8 is fixed on both sides of the filter screen 3 near the end of the millimeter-wave down-converter 1. A corresponding slot 10 is opened on both sides of the millimeter-wave down-converter 1 near the end of the filter screen 3, and the slot 10 and the locking block 8 are connected by magnet 9 for adsorption and locking.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, by utilizing the interlocking connection between the card block 8 and the card slot 10, the filter screen 3 can be inserted into the outside of the heat dissipation slot 5 to isolate dust.

[0027] The size of the card block 8 is matched with the size of the card slot 10, and the cross-sections of both the card block 8 and the card slot 10 are set in a trapezoidal shape;

[0028] The cleaning rack 14 has cleaning bristles 15 distributed on its inner side. The filter screen 3 has an internal groove 11, and a threaded rod 12 is rotatably connected inside the internal groove 11. A threaded sleeve 13 is fitted on the outside of the threaded rod 12, and the threaded sleeve 13 is fixedly connected to the cleaning rack 14. A movable block 16 is fixed at one end of the cleaning rack 14 near the filter screen 3. A movable groove 17 is opened at one end of the filter screen 3 near the cleaning rack 14, and the movable block 16 is slidably connected inside the movable groove 17.

[0029] Specifically, such as Figure 2 As shown, by using the threaded connection, the cleaning rack 14 can be moved up and down on the surface of the filter screen 3, thereby cleaning the dust adhering to the surface of the filter screen 3 and preventing it from clogging the surface of the filter screen 3 and affecting the subsequent heat dissipation.

[0030] Protective corners 18 are fixed at the four corners of the millimeter-wave downconverter 1. The corners are made of rubber, which has a certain buffering and impact resistance and a certain wear resistance.

[0031] Specifically, such as Figure 3 As shown, by using the protective angle 18, the device can be buffered and protected to a certain extent, thus extending its service life and value.

[0032] Fixed support angles 19 are fixed in four directions below the millimeter-wave downconverter 1, and multiple anti-slip protrusions 20 are distributed below the fixed support angles 19. Their cross-sections are all circular, and they are distributed in a ring below the fixed support angles 19.

[0033] Specifically, such as Figure 3 As shown, by utilizing the fixed support angle 19 and the cooperation of the anti-slip protrusion 20, the device can be stably placed on the contact surface, ensuring its operational stability.

[0034] The heat dissipation fins 6 have a tree-like fractal structure, the height of heat dissipation fins 6 is 20mm, the bifurcation angle of 7 is 60°, and the bottom is embedded with a shape memory alloy thermal push rod;

[0035] Specifically, such as Figure 2 and Figure 4 As shown, the heat dissipation fins 6 are arranged in a tree-like fractal structure. The fractal structure disrupts the laminar boundary layer, increasing the heat transfer coefficient by 2.8 times.

[0036] In this embodiment, the filter screen 3 can be inserted into the front end of the heat dissipation slot 5 through the interlocking connection between the card block 8 and the card slot 10, which can play a certain role in blocking dust. With long-term use, dust will adhere to the surface of the filter screen 3. At this time, turning the handwheel 4 and the threaded connection can drive the cleaning rack 14 to move back and forth on the surface of the filter screen 3, thereby playing the role of regularly cleaning the dust and preventing the filter screen 3 from being blocked by dust over a long period of time, which would affect the subsequent heat dissipation effect.

[0037] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A millimeter-wave down-converter and a millimeter-wave broadband frequency converter, comprising a millimeter-wave down-converter (1), characterized in that: The millimeter-wave downconverter (1) has a terminal block (2) fixed at its front end. The millimeter-wave downconverter (1) has a heat dissipation groove (5) inside, and heat dissipation fins (6) are placed inside the heat dissipation groove (5). There are three sets of heat dissipation fins (6). Heat dissipation secondary fins (7) are fixed on both sides of the heat dissipation fins (6). A filter screen (3) is connected to the front end of the heat dissipation groove (5), and a cleaning rack (14) is movably connected to the front end of the filter screen (3). A locking block (8) is fixed on both sides of the filter screen (3) near the end of the millimeter-wave downconverter (1). A corresponding slot (10) is opened on both sides of the millimeter-wave downconverter (1) near the end of the filter screen (3). The slot (10) and the locking block (8) are connected by magnetic attraction (9).

2. The millimeter-wave down-conversion device and millimeter-wave broadband frequency conversion equipment according to claim 1, characterized in that: The size of each card block (8) is matched with the size of each card slot (10), and the cross-sections of both the card block (8) and the card slot (10) are trapezoidal.

3. The millimeter-wave down-conversion device and millimeter-wave broadband frequency conversion equipment according to claim 1, characterized in that: The cleaning rack (14) has cleaning bristles (15) distributed on its inner side. The filter screen (3) has an internal groove (11) and a threaded rod (12) is rotatably connected inside the internal groove (11). A threaded sleeve (13) is fitted on the outside of the threaded rod (12) and is fixedly connected to the cleaning rack (14). A movable block (16) is fixed at one end of the cleaning rack (14) near the filter screen (3). A movable groove (17) is opened at one end of the filter screen (3) near the cleaning rack (14). The movable block (16) is slidably connected inside the movable groove (17).

4. The millimeter-wave down-conversion device and millimeter-wave broadband frequency conversion equipment according to claim 1, characterized in that: The millimeter-wave downconverter (1) has protective corners (18) fixed at its four corners, which are made of rubber.

5. The millimeter-wave down-conversion device and millimeter-wave broadband frequency conversion equipment according to claim 1, characterized in that: The millimeter-wave downconverter (1) has fixed support angles (19) fixed in four directions below it, and multiple anti-slip protrusions (20) are distributed below the fixed support angles (19), all of which are circular in cross-section and are distributed in a ring below the fixed support angles (19).

6. The millimeter-wave down-conversion device and millimeter-wave broadband frequency conversion equipment according to claim 1, characterized in that: The heat dissipation fins (6) have a tree-like fractal structure, the height of the heat dissipation fins (6) is 20mm, the bifurcation angle of 7 is 60°, and the bottom is embedded with a shape memory alloy thermal push rod.

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