Conductor assembly

Abstract

The invention provides a conductor assembly, and relates to the field of high-frequency signal transmission. Comprising a first conductor and a second conductor, a moving part is arranged at the end part of the second conductor; the moving part is movably arranged in the sealing cavity and divides the sealing cavity into a compression cavity and an atmospheric pressure cavity along the axial direction of the conductor; wherein the compression cavity is externally connected with a compressed air source, and the atmospheric pressure cavity is communicated with the atmosphere; when compressed gas is continuously introduced into the compression cavity, the compressed gas can push the moving part to move in the sealing cavity, so that the end face of the second conductor is tightly connected with the end face of the first conductor. According to the invention, low-loss and high-stability connection between signal transmission conductors can be realized.

Description

Technical Field

[0001] The present invention relates to the field of high-frequency signal transmission, and in particular to a conductor component. Background Art

[0002] In the fields of microwave communications, radio frequency systems, and high-speed digital circuits, the connection quality between conductors directly affects the integrity of signal transmission and system performance. Traditional conductor connection methods, such as threaded connections, spring pin contacts, or welding, can still meet the needs in low-frequency or DC applications, but have significant limitations in high-frequency (MHz to GHz) scenarios: First, mechanical connections (such as bolt fixings) will cause unstable contact resistance due to the presence of microscopic gaps or oxide layers on the contact surface, thereby increasing signal attenuation and heat accumulation. Secondly, although welding connections can reduce contact resistance, the inconsistency of the dielectric properties of the solder may introduce parasitic capacitance or inductance, destroying the impedance continuity of the transmission line and causing signal reflection. In addition, the existing connection structure has poor adaptability to environmental stresses such as vibration and thermal cycles. After long-term use, the connection is prone to looseness, further deteriorating the high-frequency signal transmission performance and making it difficult to meet the requirements of long-term stability. Summary of the invention

[0003] The object of the present invention is to provide a conductor assembly which can realize a low-loss, high-stability and tight connection between signal transmission conductors.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: A conductor assembly comprises a first conductor and a second conductor, wherein a sealed cavity is disposed at an end of the first conductor; and a moving part is disposed at an end of the second conductor; The moving member is movably arranged in the sealed cavity, and divides the sealed cavity into a compression cavity and an atmospheric pressure cavity along the axial direction of the conductor; wherein the compression cavity is externally connected to a compressed gas source, and the atmospheric pressure cavity is connected to the atmosphere; When compressed gas is continuously introduced into the compression chamber, the compressed gas can push the moving member to move in the sealed chamber, so that the end surface of the second conductor is tightly connected to the end surface of the first conductor.

[0005] Furthermore, in the present invention, a connecting rod is provided at the end of the second conductor, and the moving member is connected to the connecting rod.

[0006] Furthermore, in the present invention, the sealed cavity includes a groove arranged at the end of the first conductor and a sealing plate detachably connected to the groove port; the sealing plate is provided with a through hole, and the connecting rod can movably pass through the through hole and seal with the inner wall of the through hole.

[0007] Further, in the present invention, the longitudinal cross-section of the groove is in a stepped shape with an increasing diameter from the inside to the outside, and the outer diameter of the moving member is smaller than the inner diameter of the smallest part of the groove diameter.

[0008] Further, in the present invention, the longitudinal cross-section of the sealing plate is in a stepped shape and is fitted and embedded at the port of the groove, and its outer end face is flush with or lower than the outer end face of the first conductor.

[0009] Further, in the present invention, a first sealing ring is provided between the outer wall of the connecting rod and the inner wall of the through hole.

[0010] Further, in the present invention, a second sealing ring is provided between the outer wall of the moving member and the inner wall of the sealing cavity.

[0011] Further, in the present invention, a third sealing ring is provided at the edge of the docking surface between the first conductor and the second conductor.

[0012] Further, in the present invention, a gas delivery channel is provided inside the first conductor or the second conductor, and the compressed gas source communicates with the compression cavity through the gas delivery channel; An atmospheric pressure channel communicating with the atmospheric pressure cavity is provided inside the first conductor, and the atmospheric pressure channel communicates with the outside of the first conductor.

[0013] Further, in the present invention, a pressure relief channel is also provided in the first conductor or the second conductor. One end of the pressure relief channel communicates with the compression cavity, and the other end of the pressure relief channel communicates with the outside of the conductor and a sealing plug is provided at the communication point.

[0014] The present invention has at least the following advantages or beneficial effects: In the present invention, by providing a sealing cavity at the end of the first conductor and a moving member at the end of the second conductor, the moving member is movably arranged in the sealing cavity, and the sealing cavity can be divided into a compression cavity and an atmospheric pressure cavity along the axial direction of the conductor. By connecting the compression cavity to an external compressed gas source and connecting the atmospheric pressure cavity to the atmosphere, it can be realized that when compressed gas is continuously introduced into the compression cavity, the compressed gas pushes the moving member to move in the sealing cavity, and the moving member drives the second conductor to move towards the first conductor side, so that the end face of the second conductor is tightly connected to the end face of the first conductor. In this application, the tight connection between conductors is realized by compressed gas, which can avoid the unstable resistance caused by the microscopic gap between conductors during mechanical connection, and at the same time can avoid introducing solder of other materials to cause signal reflection. It has high environmental adaptability, tight connection, high stability and low loss. Description of the Drawings

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0016] Figure 1 A cross-sectional view of the conductor assembly provided for Embodiment 1 of the application; Figure 2 A cross-sectional view of the conductor assembly provided for Embodiment 2 of the application.

[0017] Reference numerals: 1 - first conductor, 11 - sealed cavity, 111 - compression cavity, 112 - atmospheric pressure cavity, 12 - sealing plate, 121 - through hole, 13 - gas delivery channel, 14 - atmospheric pressure channel, 15 - pressure relief channel, 2 - second conductor, 21 - moving part, 22 - connecting rod, 3 - compression gas source, 4 - first sealing ring, 5 - second sealing ring, 6 - third sealing ring, 7 - sealing plug. Detailed Description of the Embodiments

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0020] Embodiment 1

[0021] Please refer to Figure 1 , which shows the structural schematic diagram of the conductor assembly in the embodiment of the present invention; This embodiment provides a conductor assembly, including a first conductor 1 and a second conductor 2 that can be connected to each other. A sealing cavity 11 is provided at the end of the first conductor 1, and the sealing cavity 11 is a closed cavity provided at the end of the first conductor 1. A moving member 21 is provided at the end of the second conductor 2, and the moving member 21 is movably arranged in the sealing cavity 11, that is, the moving member 21 can move in the sealing cavity 11, so as to drive the second conductor 2 to move towards or away from the first conductor 1, realizing the connection or loosening with the first conductor 1. The moving member 21 divides the sealing cavity 11 into a compression cavity 111 and an atmospheric pressure cavity 112 along the axial direction of the conductor; wherein, the compression cavity 111 is externally connected to a compression gas source 3 and can introduce compressed gas into the compression cavity 111, and the atmospheric pressure cavity 112 is communicated with the atmosphere and can discharge the gas in the atmospheric pressure cavity 112, so that the pressures in the compression cavity 111 and the atmospheric pressure cavity 112 are inconsistent, thereby being able to push the moving member 21 to move.

[0022] Specifically, as Figure 1 , the compression cavity 111 is located on the side close to the second conductor 2, and the atmospheric pressure cavity 112 is located on the side far from the second conductor 2. When continuously introducing compressed gas into the compression cavity 111, the pressure in the compression cavity 111 increases at this time, the gas in the atmospheric pressure cavity 112 is discharged, and the pressure decreases. The compressed gas can push the moving member 21 towards the first conductor 1 side, and then drive the second conductor 2 towards the first conductor 1 side, so that the end face of the second conductor 2 is tightly connected to the end face of the first conductor 1.

[0023] As an example, a gas delivery channel 13 is provided inside the first conductor 1. The gas delivery channel 13 extends from the side wall of the first conductor 1 to the inside and then is divided into multiple branch channels that extend towards the compression cavity 111 respectively until they are communicated with the compression cavity 111. The above-mentioned compression gas source 3 is arranged on one side of the first conductor 1 and is communicated with the inlet of the gas delivery channel 13, and can introduce compressed gas into the compression cavity 111 through the gas delivery channel 13 and multiple branch channels. An atmospheric pressure channel 14 communicated with the atmospheric pressure cavity 112 is provided inside the first conductor 1. The atmospheric pressure channel 14 is communicated with the outside of the first conductor 1 and can discharge the gas inside through the atmospheric pressure channel 14, so that the pressure in the atmospheric pressure cavity 112 is less than the pressure in the compression cavity 111, realizing the tight connection of the conductor.

[0024] Further, to facilitate the quick disassembly of the first conductor 1 and the second conductor 2, a pressure relief channel 15 is also provided in the first conductor 1. One end of the pressure relief channel 15 communicates with the compression chamber 111, and the other end of the pressure relief channel 15 communicates with the outside of the conductor, and a sealing plug 7 is provided at the communication point. During disassembly, the sealing plug 7 is opened, and the compressed gas in the compression chamber 111 can be quickly discharged through the pressure relief channel 15, so that the pressures in both the compression chamber 111 and the atmospheric pressure chamber 112 are the same as the atmospheric pressure, and the moving member 21 no longer applies a pulling force to the second conductor 2, thereby enabling the quick separation of the first conductor 1 and the second conductor 2. When the first conductor 1 needs to be connected to the second conductor 2, the pressure relief channel 15 can be sealed with the sealing plug 7.

[0025] As an example, a connecting rod 22 is provided at the end of the second conductor 2, and the moving member 21 is connected to the connecting rod 22. By providing the connecting rod 22 to connect the moving member 21 to the end of the second conductor 2, a certain distance is formed between the moving member 21 and the end face of the second conductor 2. While the moving member 21 can be movably arranged at a suitable position inside the sealing chamber 11, the end face of the second conductor 2 can be tightly connected to the end face of the first conductor 1.

[0026] Further, for the convenience of manufacturing and installation, the moving member 21 and the connecting rod 22 are detachably connected, and specifically, the two can be connected and fixed by connecting members such as bolts.

[0027] As an example, the sealing chamber 11 can be composed of a groove provided at the end of the first conductor 1 and a sealing plate 12 detachably connected to the port of the groove, so that it is convenient to detachably arrange the moving member 21 in the sealing chamber 11. A through hole 121 is provided in the sealing plate 12, and the connecting rod 22 can movably pass through the through hole 121, enabling the moving member 21 to move back and forth in the sealing chamber 11; and the connecting rod 22 is in sealing cooperation with the inner wall of the through hole 121, which can prevent the compressed gas in the compression chamber 111 from leaking. Specifically, the sealing plate 12 can be tightly connected to the end face of the groove through a plurality of countersunk bolts, which is convenient for disassembly and assembly.

[0028] Further, a first sealing ring 4 is provided between the outer wall of the connecting rod 22 and the inner wall of the through hole 121. The first sealing ring 4 can be embedded in the outer wall of the connecting rod 22 or the inner wall of the through hole 121. The first sealing ring 4 is made of rubber, which can improve the sealing performance between the connecting rod 22 and the through hole 121, strengthen the sealing effect, and prevent the leakage of compressed gas, which may cause the failure to effectively push the moving member 21 and further lead to loose connection between the first conductor 1 and the second conductor 2.

[0029] A second sealing ring 5 is provided between the outer wall of the moving member 21 and the inner wall of the sealing cavity 11. The second sealing ring 5 is used to seal between the outer ring surface of the moving member 21 and the inner wall of the sealing cavity 11, and can effectively divide the sealing cavity 11 into a compression cavity 111 and an atmospheric pressure cavity 112, avoiding gas flow between the two and thus affecting the sealing effect of the compression cavity 111.

[0030] A third sealing ring 6 is provided at the edge of the butting surface of the first conductor 1 and the second conductor 2. The third sealing ring 6 is used to seal the edge of the butting end surface of the first conductor 1 and the second conductor 2, avoiding the leakage of gas in the compression cavity 111 from the butting surface, and further improving the sealing effect of the compression cavity 111.

[0031] As an example, in order to facilitate the machining of the gas delivery channel 13 and the filling of compressed gas, the longitudinal section of the groove is in a stepped shape with an increasing diameter from the inside to the outside. The outer diameter of the moving member 21 is smaller than the inner diameter of the smallest part of the groove diameter, so that the moving member 21 can move in this part. At the same time, the diameter of the compression cavity 111 part is larger than the diameter of the atmospheric pressure cavity 112 part, facilitating the connection between the gas delivery channel 13 and the compression cavity 111, avoiding multiple bends in the channel, and making the production simple.

[0032] Furthermore, in order to improve the connection tightness between the first conductor 1 and the second conductor 2, the longitudinal section of the sealing plate 12 is also in a stepped shape and is adaptively embedded at the port of the groove, matching the stepped structure of the groove port, and its outer end surface is flush with or lower than the outer end surface of the first conductor 1. In this way, the end surface of the second conductor 2 can be tightly attached to the end surface of the first conductor 1, avoiding the generation of gaps and resulting in gas leakage.

[0033] The working principle of the conductor assembly provided in this embodiment is as follows: During assembly, after passing the connecting rod 22 through the through hole 121 of the sealing plate 12, the moving member 21 is bolted to the end of the connecting rod 22, and the moving member 21 is placed inside the sealing cavity 11. Then, the sealing plate 12 is fixed to the end of the first conductor 1 by bolts. Seal the pressure relief channel 15 with the sealing plug 7, connect the inlet of the gas delivery channel 13 to the compression gas source 3, turn on the compression gas source 3, and continuously introduce compressed gas into the compression cavity 111. The compressed gas pushes the moving member 21 to move towards the first conductor 1 side, squeezing the atmospheric pressure cavity 112, and the gas in the atmospheric pressure cavity 112 is discharged through the atmospheric pressure channel 14; the second conductor 2 moves towards the first conductor 1 side under the drive of the moving member 21, and its end surface is tightly attached to the end surface of the first conductor 1 to achieve a tight connection.

[0034] The beneficial effects of the conductor assembly provided in this embodiment are as follows: Introducing compressed gas can quickly achieve a tight connection between conductors, improve the connection quality between conductors, and can quickly separate the first conductor 1 and the second conductor 2, with convenient disassembly and assembly and simple operation. It can avoid the unstable resistance caused by microscopic gaps between conductors during mechanical connection, and at the same time can avoid signal reflection caused by introducing solder of other materials during welded connection. Moreover, through the connection with compressed gas, it can automatically adapt to deformations and stresses caused by environments such as vibration, thermal expansion and contraction, and has high connection stability.

[0035] Embodiment 2

[0036] Refer to Figure 2 , the conductor assembly provided in this embodiment is substantially the same as the conductor assembly in Embodiment 1, except that the gas delivery channel 13 in this embodiment is provided in the second conductor 2.

[0037] Specifically, the gas delivery channel 13 extends from one side of the second conductor 2 towards the inside, and after extending into the connecting rod 22, forms a plurality of branch channels that extend outwards from the connecting rod 22 to communicate with the compression chamber 111; at this time, the compressed gas source 3 is arranged on one side of the second conductor 2 and communicates with the inlet of the gas delivery channel 13. The atmospheric pressure channel 14 is arranged on the first conductor 1 and extends from the atmospheric pressure chamber 112 to the outside of the first conductor 1 to communicate with the external atmospheric pressure.

[0038] Furthermore, the above-mentioned pressure relief channel 15 can also be arranged in the second conductor 2, extending from the side wall of the connecting rod 22 to the side wall of the second conductor 2 to communicate with the external atmospheric pressure, and a sealing plug 7 is arranged at the communication point.

[0039] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A conductor assembly, characterized in that: It comprises a first conductor and a second conductor, wherein a sealed cavity is arranged at the end of the first conductor; and a moving part is arranged at the end of the second conductor; The moving member is movably arranged in the sealed cavity, and divides the sealed cavity into a compression cavity and an atmospheric pressure cavity along the axial direction of the conductor; wherein the compression cavity is externally connected to a compressed gas source, and the atmospheric pressure cavity is connected to the atmosphere; When compressed gas is continuously introduced into the compression chamber, the compressed gas can push the moving member to move in the sealed chamber, so that the end surface of the second conductor is tightly connected to the end surface of the first conductor.

2. The conductor assembly according to claim 1, characterized in that A connecting rod is provided at the end of the second conductor, and the moving member is connected to the connecting rod.

3. The conductor assembly according to claim 2, characterized in that The sealed cavity includes a groove arranged at the end of the first conductor and a sealing plate detachably connected to the end of the groove; the sealing plate is provided with a through hole, and the connecting rod can movably pass through the through hole and seal with the inner wall of the through hole.

4. The conductor assembly according to claim 3, characterized in that The longitudinal section of the groove is in a step-like shape with increasing diameter from the inside to the outside, and the outer diameter of the moving part is smaller than the inner diameter of the smallest diameter part of the groove.

5. The conductor assembly according to claim 4, characterized in that The sealing plate has a stepped longitudinal section and is adapted to be embedded at the end of the groove, and its outer end surface is flush with or lower than the outer end surface of the first conductor.

6. The conductor assembly according to claim 3, characterized in that A first sealing ring is arranged between the outer wall of the connecting rod and the inner wall of the through hole.

7. The conductor assembly according to claim 1, characterized in that A second sealing ring is arranged between the outer wall of the moving part and the inner wall of the sealing cavity.

8. The conductor assembly according to claim 1 or 7, characterized in that: A third sealing ring is provided at the edge of the butt joint surface between the first conductor and the second conductor.

9. The conductor assembly according to claim 1, characterized in that A gas delivery channel is provided inside the first conductor or the second conductor, and the compressed gas source is connected to the compression chamber through the gas delivery channel; An atmospheric pressure channel communicating with the atmospheric pressure cavity is provided inside the first conductor, and the atmospheric pressure channel is communicated with the outside of the first conductor.

10. The conductor assembly according to claim 9, characterized in that The first conductor or the second conductor is further provided with a pressure relief channel, one end of which is communicated with the compression chamber, and the other end of which is communicated with the outside of the conductor and a sealing plug is provided at the connection point.

Images