A microwave bridge housing with enhanced shielding effectiveness

Abstract

The utility model discloses a microwave bridge shell with shielding effectiveness enhancement structure belongs to bridge shell technical field, this microwave bridge shell with shielding effectiveness enhancement structure, including: microwave bridge shell body and multiple sets of port shielding mechanism, and port shielding mechanism sets up in the top of microwave bridge shell body, and port shielding mechanism includes top and connects the box, two groups of L type connecting rod, two half frame boxes, two L type blocks and two reset springs, this microwave bridge shell with shielding effectiveness enhancement structure is through the stirring two plectrums, and the port is exposed, and after the cable is connected with the port, through the unfastening two plectrums, through the port and cable joint place package, the shielding performance of connection place is improved obviously, and the operation mode of " stirring opens, and unfastening closes " is very quick and simple. In the test or experimental scene of needing frequently changing or connecting cable, the operation time is saved, and the work efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical bridge housing technology, and more specifically, to a microwave electrical bridge housing with a shielding effectiveness enhancement structure. Background Technology

[0002] A microwave bridge is a high-frequency measurement device based on the Wheatstone bridge principle, specifically designed for the precise measurement of impedance, scattering parameters, or network characteristics of components in the microwave band. It extracts complex quantities by comparing the device under test (DUT) with a known reference standard, utilizing the balance condition of amplitude and phase. Modern microwave bridges are often integrated into vector network analyzers, employing automatic electronic tuning and calibration techniques to efficiently and accurately characterize microwave components such as antennas and filters, making them an indispensable testing tool in radio frequency and microwave engineering.

[0003] While the standard microwave bridge housing provides basic shielding for the internal circuitry, there is an inherent weak point in the shielding at the ports. Currently, the common practice for microwave bridge ports is to install a simple metal cover. When cables need to be connected, operators must first completely remove the cover using screws or clips, and then attempt to reinstall it after the cables are connected. This process is cumbersome and inefficient. Utility Model Content

[0004] 1. Technical problems to be solved To address the problems existing in the prior art, the purpose of this utility model is to provide a microwave bridge housing with an enhanced shielding effectiveness structure. It uses two semi-frame boxes to enclose the ports and cable connectors, significantly improving the shielding performance at the connection points. Furthermore, the "flip-open, release-close" operation of the two semi-frame boxes is very quick and simple. In testing or experimental scenarios requiring frequent cable replacement or connection, this saves operation time and improves work efficiency.

[0005] 2. Technical Solution

[0006] To solve the above problems, the present invention adopts the following technical solution: A microwave bridge housing with enhanced shielding effectiveness includes: Microwave bridge housing; and Multiple sets of port shielding mechanisms are disposed on the top of the microwave bridge housing. Each port shielding mechanism includes a top junction box, two sets of L-shaped connecting rods, two half-frame boxes, two L-shaped blocks, and two return springs. The top junction box is fixedly connected to the top of the microwave bridge housing. Each set of L-shaped connecting rods has two members, and each set of two L-shaped connecting rods slides through one inner wall of the top junction box. Each half-frame box is fixedly connected to the lower end of the corresponding two L-shaped connecting rods. Each L-shaped block is fixedly connected to one end of the corresponding two L-shaped connecting rods. The two return springs are fixedly connected between the two L-shaped blocks.

[0007] As a preferred embodiment of this utility model, two strip-shaped sliding holes are provided on one outer surface of the top box, and each set of two L-shaped connecting rods are slidably connected in the corresponding strip-shaped sliding holes.

[0008] As a preferred embodiment of this utility model, the port shielding mechanism further includes two limiting rods, both of which are fixedly connected between the inner walls of the two sides of the top junction box, and each L-shaped block is slidably sleeved on the two limiting rods.

[0009] As a preferred embodiment of this utility model, each of the limiting rods is made of stainless steel.

[0010] As a preferred embodiment of this utility model, the port shielding mechanism further includes two levers, which are respectively fixedly connected to the top of the two L-shaped blocks by two fixing rods.

[0011] As a preferred embodiment of this utility model, the top of the top box has two elongated sliding holes, and each of the fixing rods is slidably connected in the corresponding elongated sliding hole.

[0012] 3. Beneficial effects

[0013] Compared with the prior art, this utility model provides a microwave bridge housing with an enhanced shielding effectiveness structure, which has the following beneficial effects: This microwave bridge housing, featuring an enhanced shielding structure, allows for easy connection of cables to ports on the side of the housing. By moving two levers, two fixed rods move two L-shaped blocks away from each other, causing two sets of L-shaped connecting rods to move away from each other as well. This separates the two half-frames, exposing the port. After connecting the cable, releasing the levers allows two stretched return springs to move the two L-shaped blocks closer together. This causes the two sets of L-shaped connecting rods to move the two half-frames closer together, effectively enclosing the port and cable connection. This significantly improves the shielding performance at the connection point. The "lever open, release close" operation is quick and simple. In testing or experimental scenarios requiring frequent cable replacement or connection, this saves operation time and improves work efficiency. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a partial structural cross-sectional view of the present invention.

[0015] Explanation of the labels in the diagram: 1. Microwave bridge housing; 2. Port shielding mechanism; 201. Top junction box; 202. L-shaped connecting rod; 203. Half frame box; 204. L-shaped block; 205. Return spring; 206. Limiting rod; 207. Paddle. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. Example

[0017] Please see Figures 1-3 A microwave bridge housing with enhanced shielding effectiveness includes: Microwave bridge housing 1; and Multiple sets of port shielding mechanisms 2 are disposed on the top of the microwave bridge housing 1. The port shielding mechanism 2 includes a top junction box 201, two sets of L-shaped connecting rods 202, two half-frame boxes 203, two L-shaped blocks 204, and two return springs 205. The top junction box 201 is fixedly connected to the top of the microwave bridge housing 1. Each set of L-shaped connecting rods 202 has two rods, and each set of two L-shaped connecting rods 202 slides through one side of the inner wall of the top junction box 201. Each half-frame box 203 is fixedly connected to the lower end of the corresponding two L-shaped connecting rods 202. Each L-shaped block 204 is fixedly connected to one end of the corresponding two L-shaped connecting rods 202. The two return springs 205 are fixedly connected between the two L-shaped blocks 204.

[0018] In a specific embodiment of this utility model, the microwave bridge housing 1 is a common microwave bridge housing on the market. The number of port shielding mechanisms 2 corresponds to the number of ports of the microwave bridge. Each set of port shielding mechanisms 2 is installed near the corresponding port. The two half-frame boxes 203 are made of shielding material. When it is necessary to connect the cable to the port on the side of the microwave bridge housing 1, by moving the two L-shaped blocks 204 away from each other, the two sets of L-shaped connecting rods 202 are moved away from each other, so that the two half-frame boxes 203 are separated, exposing the port. After connecting the cable to the port, by releasing the two L-shaped blocks 204, under the restoring force of the two tensioned return springs 205, the two L-shaped blocks 204 will move closer to each other, so that the two sets of L-shaped connecting rods 202 drive the two half-frame boxes 203 to move closer to each other, covering the port and cable connection. By covering the port and cable joint, the shielding performance of the connection is significantly improved. Moreover, the operation method of "moving to open and releasing to close" is very fast and simple. In testing or experimental scenarios where frequent cable replacement or connection is required, it saves operation time and improves work efficiency.

[0019] Specifically, two strip-shaped sliding holes are opened on one side of the outer surface of the top junction box 201, and each set of two L-shaped connecting rods 202 are slidably connected in the corresponding strip-shaped sliding holes.

[0020] In this embodiment, two strip-shaped sliding holes are used to limit the movement range of the two sets of L-shaped connecting rods 202.

[0021] Specifically, the port shielding mechanism 2 also includes two limiting rods 206, which are fixedly connected between the inner walls of the two sides of the top junction box 201, and each L-shaped block 204 is slidably sleeved on the two limiting rods 206.

[0022] In this embodiment, the two limiting rods 206 keep the two L-shaped blocks 204 stable during movement.

[0023] Specifically, each limit rod 206 is made of stainless steel.

[0024] In this embodiment, the limiting rod 206 is made of stainless steel with a smooth surface and low friction with the L-shaped block 204.

[0025] Specifically, the port shielding mechanism 2 also includes two levers 207, which are fixedly connected to the tops of the two L-shaped blocks 204 by two fixing rods.

[0026] In this embodiment, the two paddles 207 facilitate the operator to move the two L-shaped blocks 204 in a relatively distant direction.

[0027] Specifically, the top of the top junction box 201 has two elongated sliding holes, and each fixing rod is slidably connected in the corresponding elongated sliding hole.

[0028] In this embodiment, two elongated sliding holes are used to limit the movement range of the two fixed rods and the two levers 207.

[0029] Working Principle: When connecting a cable to a port on the side of the microwave bridge housing 1, by moving the two levers 207, the two fixed rods move the two L-shaped blocks 204 relatively away, causing the two sets of L-shaped connecting rods 202 to move relatively away as well. This separates the two half-frame boxes 203, exposing the port. After connecting the cable to the port, releasing the two levers 207 allows the two L-shaped blocks 204 to move relatively closer under the restoring force of the two stretched return springs 205. This causes the two sets of L-shaped connecting rods 202 to move the two half-frame boxes 203 relatively closer, thus encasing the port and cable connection. By encasing the port and cable joint, the shielding performance at the connection point is significantly improved. Moreover, the "lever open, release close" operation is very quick and simple. In testing or experimental scenarios where frequent cable replacement or connection is required, this saves operation time and improves work efficiency.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A microwave bridge housing with enhanced shielding effectiveness, characterized in that, include: Microwave bridge housing (1); as well as Multiple sets of port shielding mechanisms (2) are provided on the top of the microwave bridge housing (1). The port shielding mechanism (2) includes a top box (201), two sets of L-shaped connecting rods (202), two half-frame boxes (203), two L-shaped blocks (204) and two reset springs (205). The top box (201) is fixedly connected to the top of the microwave bridge housing (1). Each set of L-shaped connecting rods (202) has two members, and each set of two L-shaped connecting rods (202) slides through one side of the inner wall of the top box (201). Each half-frame box (203) is fixedly connected to the lower end of the corresponding two L-shaped connecting rods (202). Each L-shaped block (204) is fixedly connected to one end of the corresponding two L-shaped connecting rods (202). The two reset springs (205) are fixedly connected between the two L-shaped blocks (204).

2. The microwave bridge housing with enhanced shielding effectiveness according to claim 1, characterized in that: Two strip-shaped sliding holes are provided on one outer surface of the top box (201), and each set of two L-shaped connecting rods (202) are slidably connected in the corresponding strip-shaped sliding holes.

3. The microwave bridge housing with enhanced shielding effectiveness according to claim 1, characterized in that: The port shielding mechanism (2) also includes two limiting rods (206), both of which are fixedly connected between the inner walls of the two sides of the top junction box (201), and each L-shaped block (204) is slidably sleeved on the two limiting rods (206).

4. The microwave bridge housing with enhanced shielding effectiveness according to claim 3, characterized in that: Each of the aforementioned limit rods (206) is made of stainless steel.

5. The microwave bridge housing with enhanced shielding effectiveness according to claim 1, characterized in that: The port shielding mechanism (2) also includes two levers (207), which are fixedly connected to the top of the two L-shaped blocks (204) by two fixing rods.

6. The microwave bridge housing with enhanced shielding effectiveness according to claim 5, characterized in that: The top of the top box (201) has two elongated sliding holes, and each of the fixing rods is slidably connected in the corresponding elongated sliding hole.

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