A vector network analyzer calibration loading device

Abstract

The utility model belongs to network analyzer technical field, and disclose a kind of vector network analyzer calibration loading device, including analyzer body, the bottom of analyzer body is equipped with four support legs, and one end of analyzer body is equipped with air outlet, the air outlet includes four dust baffle of rotationally connected with air outlet, one end of dust baffle is fixedly connected with two connecting blocks, and the connecting block of same vertical side is rotatably connected with vertical rod, one end of one vertical rod is rotatably connected with connecting rod, the utility model is equipped with rotatable dust baffle in air outlet, under the action that power motor drives dust baffle to open synchronously when equipment is powered on, dust baffle is closed synchronously when equipment is powered off, both solve the problem that existing device air outlet is easy to enter dust, and can open air outlet passage completely when equipment is running, guarantee hot air to discharge smoothly, avoid the double hidden danger that dust invades and heat dissipation is blocked.

Description

Technical Field

[0001] This utility model belongs to the field of network analyzer technology, specifically a calibration loading device for a vector network analyzer. Background Technology

[0002] In the field of modern radio frequency / microwave technology, the vector network analyzer (VNA), as a core instrument for measuring network scattering parameters (S-parameters), has become an indispensable key device in the R&D, production, and testing processes of many industries such as communications, radar, aerospace, and electronic measurement. It can accurately acquire key electrical characteristics such as amplitude, phase, and impedance of the device under test, providing crucial data support for device performance evaluation, system debugging, and optimization, and directly affecting the performance stability and reliability of various electronic systems.

[0003] Meanwhile, the patent specification with application number CN221746110U discloses a vector network analyzer, which "includes a vector network analyzer, the outer shell of the vector network analyzer is provided with several heat dissipation vents, the vector network analyzer is provided with an opening, the inside of the vector network analyzer is provided with a rotatable rotating plate, the rotating plate is provided with several mounting holes, the side of the rotating plate is fixed with a connecting rod, the connecting rod passes through the opening and is rotatably connected to the opening, and the inner surface of the vector network analyzer and the rotating plate are provided with a limit component"; In the current calibration loading device for vector network analyzers, the air outlet is mostly a fixed opening structure without any shielding or protection design. When the equipment is not in use, dust, lint and other impurities in the air can easily settle directly into the equipment through the fixed opening. Over time, they will accumulate on the surface of core components such as RF modules and circuit boards, which not only increases the frequency of equipment cleaning and maintenance, but may also affect the heat dissipation efficiency and testing accuracy of the components, and shorten the service life of the equipment.

[0004] Therefore, a vector network analyzer calibration loading device is proposed to address the above problems. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a calibration loading device for a vector network analyzer. This device solves the problem of dust easily entering the air outlet of existing devices, and can fully open the air outlet channel during equipment operation to ensure smooth exhaust of hot air, avoiding the dual risks of dust intrusion and heat dissipation obstruction. It also reduces the risk of dust and liquid accumulation on the placement surface entering the equipment through the air inlet. Furthermore, it works synergistically with the linkage structure of the dustproof plate to make the dustproof and heat dissipation performance of the equipment more stable.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vector network analyzer calibration loading device, comprising an analyzer body, four support legs at the bottom of the analyzer body, and an air outlet at one end of the analyzer body. The air outlet includes four dust-proof plates rotatably connected to the air outlet. Two connecting blocks are fixedly connected to one end of each dust-proof plate. Multiple connecting blocks on the same vertical side are rotatably connected to a vertical rod. One end of one of the vertical rods is rotatably connected to a connecting rod, and one end of the connecting rod is rotatably connected to a drive rod. A power motor is fixedly connected to one end of the analyzer body, and the output end of the power motor passes through the analyzer body and is fixedly connected to the drive rod.

[0007] Preferably, sealing grooves are provided on the surfaces of two adjacent dustproof panels that are in contact with each other when closed.

[0008] Preferably, the inner surface of the sealing groove is coated with a sealing coating.

[0009] Preferably, the inner walls on both sides of the analyzer body are provided with receiving grooves to accommodate the drive rod, connecting rod and vertical rod.

[0010] Preferably, the bottom of the analyzer body has several air inlets.

[0011] Preferably, when the support leg is supported on the placement surface, a gap is formed between the bottom end of the analyzer body and the placement surface, and the air inlet is connected to the gap.

[0012] Preferably, the opening direction of the air inlet is inclined towards the outside of the analyzer body.

[0013] Preferably, the bottom end of the support leg is fixedly connected to an anti-slip pad made of elastic rubber.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model solves the problem of dust easily entering the air outlet of existing devices by setting a rotatable dustproof plate at the air outlet. When the equipment is turned on, the power motor drives the dustproof plate to open synchronously and when the equipment is turned off, the dustproof plate is driven to close synchronously. This not only solves the problem of dust easily entering the air outlet of existing devices, but also allows the air outlet channel to be fully opened when the equipment is running, ensuring that hot air is smoothly discharged and avoiding the dual hidden dangers of dust intrusion and heat dissipation obstruction.

[0015] 2. This utility model improves dustproof reliability by opening sealing grooves and applying sealing coatings on the mating surfaces of adjacent dustproof plates, and by tilting the air inlet towards the outside of the main body and connecting it with the bottom gap formed by the support leg. When the dustproof plates are closed, the sealing and dustproof effect is enhanced, and when air is introduced, clean air from outside the equipment is preferentially drawn in. At the same time, it reduces the risk of dust and liquid on the placement surface entering the equipment through the air inlet. It works synergistically with the linkage structure of the dustproof plates to make the dustproof and heat dissipation performance of the equipment more stable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the analyzer body housing structure of this utility model; Figure 3 This is a side view of the cross-sectional structure of the analyzer body housing of this utility model; Figure 4 This is a schematic diagram of the dustproof panel structure of this utility model; Figure 5 This is an exploded view of the dustproof panel structure of this utility model.

[0017] In the diagram: 1. Analyzer body; 11. Air outlet; 12. Receiving tank; 13. Air inlet; 2. Support legs; 21. Anti-slip mat; 3. Power motor; 31. Connecting rod; 32. Dustproof plate; 321. Sealing groove; 33. Connecting block; 34. Vertical rod; 35. Drive rod. Detailed Implementation

[0018] 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.

[0019] like Figures 1 to 5 As shown, this utility model provides a vector network analyzer calibration loading device, including an analyzer body 1, four support legs 2 at the bottom of the analyzer body 1, and an air outlet 11 at one end of the analyzer body 1. The air outlet 11 includes four dust-proof plates 32 rotatably connected to the air outlet 11. Two connecting blocks 33 are fixedly connected to one end of the dust-proof plate 32. Multiple connecting blocks 33 on the same vertical side are rotatably connected to a vertical rod 34. One end of one vertical rod 34 is rotatably connected to a connecting rod 31. One end of the connecting rod 31 is rotatably connected to a drive rod 35. One end of the analyzer body 1 is fixedly connected to a power motor 3. The output end of the power motor 3 passes through the analyzer body 1 and is fixedly connected to the drive rod 35. The power motor 3 drives the drive rod 35. With the linkage of the connecting rod 31, the vertical rod 34 and the connecting block 33, the dust-proof plates 32 can be opened and closed synchronously. This realizes the function of opening the air outlet 11 for heat dissipation when the equipment is running and closing it for dust prevention when idle. This solves the problem of dust easily entering through existing fixed openings. At the same time, the support leg 2 can lift the analyzer body 1 to reserve space for subsequent air intake.

[0020] Specifically, sealing grooves 321 are provided on the surfaces of two adjacent dustproof plates 32 when they are in contact with each other in the closed state. The sealing grooves 321 provided on the contact surfaces of adjacent dustproof plates 32 increase the sealing contact area, reduce the risk of dust entering the interior of the analyzer body 1 from the gaps in the dustproof plates 32, and improve the dustproof sealing performance.

[0021] like Figures 1 to 5 As shown, the inner surface of the sealing groove 321 is coated with a sealing coating. The sealing coating applied to the sealing groove 321 can fill the tiny gaps on the surface of the sealing groove 321, further enhancing the sealing effect when the adjacent dustproof plates 32 are closed, preventing fine dust particles from entering the analyzer body 1 through the gaps in the sealing groove 321, while improving the wear resistance of the sealing groove 321 and extending the service life of the sealing structure.

[0022] Furthermore, the inner walls on both sides of the analyzer body 1 are provided with receiving grooves 12 to accommodate the drive rod 35, the connecting rod 31 and the vertical rod 34. The receiving grooves 12 on the inner wall of the analyzer body 1 can accommodate the drive rod 35, the connecting rod 31 and the vertical rod 34, avoiding the transmission components from being exposed in the internal space of the analyzer body 1, preventing the transmission components from colliding or interfering with the internal components, and reducing the maintenance frequency.

[0023] like Figures 1 to 5 As shown, the bottom of the analyzer body 1 has several air inlets 13. The air inlets 13 at the bottom of the analyzer body 1 provide cold air supply to the internal heating components of the analyzer body 1 to prevent heat from accumulating inside.

[0024] It is worth noting that when the support leg 2 is supported on the placement surface, a gap is formed between the bottom of the analyzer body 1 and the placement surface. The air inlet 13 is connected to this gap. The gap formed by the support leg 2 lifting the bottom of the analyzer body 1 can ensure that the air inlet 13 is smoothly connected to the external space, avoid the placement surface from blocking the air inlet 13, ensure that cold air can continuously enter the analyzer body 1 through the air inlet 13, and at the same time reduce the situation where dust on the placement surface directly covers the air inlet 13.

[0025] like Figures 1 to 5 As shown, the opening direction of the air inlet 13 is inclined towards the outside of the analyzer body 1 to prevent dust and liquid on the table directly below the device from being directly sucked in. At the same time, the airflow is smoother when it enters through the inclined channel and will not directly impact the components at the bottom of the device.

[0026] It is worth emphasizing that the bottom end of the support leg 2 is fixedly connected to an elastic rubber anti-slip pad 21. The elastic rubber anti-slip pad 21 at the bottom end of the support leg 2 can increase the friction between the support leg 2 and the placement surface, preventing the analyzer body 1 from shifting due to collision or vibration during use. At the same time, the elastic material can buffer the vibration caused by uneven placement surface, avoiding vibration from affecting the testing accuracy of the internal components of the analyzer body 1.

[0027] The power motor 3 is existing technology and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described in detail. The wiring diagram of the motor in this utility model is common knowledge in the field, and its working principle is already known technology. The appropriate model is selected based on actual use; therefore, the control method and wiring layout of the motor will not be explained in detail.

[0028] Working principle and process: When the vector network analyzer calibration loading device is started, the power supply of the analyzer body 1 is powered by the drive motor 3. The output of the drive motor 3 drives the drive rod 35 to rotate. The drive rod 35 pulls the vertical rod 34 through the connecting rod 31. The vertical rod 34 drives the four dustproof plates 32 to rotate synchronously through the connecting block 33, so that the dustproof plates 32 change from the closed state to the open state, exposing the air outlet 11. At the same time, under the action of thermal pressure inside the analyzer body 1, the external cold air enters the analyzer body 1 through the bottom gap formed by the support leg 2 and the inclined air inlet 13. After absorbing the heat of the internal heating components, the hot air is discharged from the air outlet 11, completing the heat dissipation cycle. When the device is closed, the drive motor 3 rotates in the reverse direction. Through the linkage of the drive rod 35, the connecting rod 31, the vertical rod 34 and the connecting block 33, the dustproof plates 32 are closed. The sealing grooves 321 of the adjacent dustproof plates 32 and the sealing coating in the grooves form a sealing structure to prevent dust from entering. At the same time, the anti-slip pads 21 at the bottom of the support leg 2 keep the device stable.

[0029] 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 process, method, article, or apparatus.

[0030] 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. A vector network analyzer calibration loading device, comprising an analyzer body (1), characterized in that: The analyzer body (1) has four support legs (2) at the bottom and an air outlet (11) at one end. The air outlet (11) includes four dust-proof plates (32) rotatably connected to the air outlet (11). Two connecting blocks (33) are fixedly connected to one end of the dust-proof plate (32). Multiple connecting blocks (33) on the same vertical side are rotatably connected to a vertical rod (34). One end of one of the vertical rods (34) is rotatably connected to a connecting rod (31). One end of the connecting rod (31) is rotatably connected to a drive rod (35). One end of the analyzer body (1) is fixedly connected to a power motor (3). The output end of the power motor (3) passes through the analyzer body (1) and is fixedly connected to the drive rod (35).

2. The vector network analyzer calibration loading device according to claim 1, characterized in that: The two adjacent dustproof panels (32) have sealing grooves (321) on their surfaces when they are in contact with each other in the closed state.

3. The vector network analyzer calibration loading device according to claim 2, characterized in that: The inner surface of the sealing groove (321) is coated with a sealing coating.

4. The vector network analyzer calibration loading device according to claim 1, characterized in that: The analyzer body (1) has receiving grooves (12) on both sides of its inner wall to accommodate the drive rod (35), the connecting rod (31) and the vertical rod (34).

5. The vector network analyzer calibration loading device according to claim 1, characterized in that: The bottom of the analyzer body (1) has several air inlets (13).

6. The vector network analyzer calibration loading device according to claim 5, characterized in that: When the support leg (2) is supported on the placement surface, a gap is formed between the bottom end of the analyzer body (1) and the placement surface, and the air inlet (13) is connected to the gap.

7. A vector network analyzer calibration loading device according to claim 6, characterized in that: The air inlet (13) is inclined toward the outside of the analyzer body (1).

8. A vector network analyzer calibration loading device according to claim 6, characterized in that: The bottom end of the support leg (2) is fixedly connected to an anti-slip pad (21) made of elastic rubber.

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