Extremely-low-temperature-resistant high-thermal-conductivity non-magnetic connector for connecting extremely-thin cable

Abstract

The utility model discloses an extremely low temperature resistant high thermal conductivity non-magnetic connector used for connecting an extremely thin cable, comprising a connector unit, the connector unit comprises a nut, a welding lining, a dielectric sheet, a beryllium bronze lining, an inner conductor, a polytetrafluoroethylene medium and a housing, the nut is installed outside the welding lining and the inner conductor, and the dielectric sheet is installed outside the welding lining and the inner conductor. The nut firmly presses the lining in a screwing mode and is firmly connected with the outer shell in a pressing mode, the welding lining is installed outside the inner conductor, the inner conductor is installed inside the outer shell, the nut, the welding lining, the medium and the medium piece, the medium piece is installed between the outer shell and the inner conductor, and the welding lining is installed outside the inner conductor. The beneficial effects of the utility model are that the miniature high-thermal-conductivity low-temperature non-magnetic semiconductor device is miniaturized and high in thermal conductivity, and can still maintain good performance in an extremely low-temperature non-magnetic environment. In addition, the whole device is simple in parts, easy to assemble and also easy to produce on a large scale.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a non-magnetic connector with high thermal conductivity and resistance to extremely low temperatures for connecting extremely fine cables. Background Technology

[0002] SSMP type RF connectors are ultra-miniature push-in RF coaxial connectors. Due to their advantages such as small size, light weight, good RF performance, rapid assembly, and wide operating bandwidth, they are widely used in high-density assembly applications in aerospace and aviation fields. The cable assemblies inside dilution refrigerators are composed of RF coaxial connectors and RF coaxial cables. The connectors not only connect the cables but also ensure smooth signal transmission. With the development of quantum bits, more components are being incorporated into refrigerators. These components combine small size and high performance; therefore, to connect more components with cables and connectors and complete signal transmission, miniaturized RF coaxial connectors will be widely used.

[0003] Existing connectors are too large to be connected to 0.5mm ultra-fine copper-nickel cables. They lack the ability to withstand extremely low temperatures, have high thermal conductivity, and operate in non-magnetic environments. Furthermore, the devices are not easy to process and assemble, especially the structure design of the dielectric layer, which makes the devices prone to short circuits, resulting in unstable device performance.

[0004] Therefore, a non-magnetic connector that can withstand extremely low temperatures and has high thermal conductivity is needed to connect extremely fine cables in order to solve the above problems. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the above-mentioned problem of a non-magnetic connector with high thermal conductivity and resistance to extremely low temperatures for connecting extremely fine cables, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a non-magnetic connector that is resistant to extremely low temperatures and has high thermal conductivity for connecting extremely fine cables. The structural design of this connector achieves the goals of miniaturization, low temperature resistance, high thermal conductivity and reliable connection performance, and it can work in a non-magnetic environment.

[0008] This utility model provides the following technical solution: a non-magnetic connector with extremely low temperature resistance and high thermal conductivity for connecting extremely fine cables, comprising:

[0009] A connector unit includes a nut, a solder bushing, a dielectric sheet, a beryllium bronze bushing, an inner conductor, a polytetrafluoroethylene dielectric, and a housing. The nut is installed outside the solder bushing and the inner conductor, and the nut is screwed in to securely press the bushing and the housing together. The solder bushing is installed outside the inner conductor. The inner conductor is installed inside the housing, the nut, the solder bushing, the dielectric, and the dielectric sheet. The dielectric sheet is installed between the housing and the inner conductor to prevent short circuits caused by the inner conductor contacting the housing due to thermal expansion and contraction.

[0010] As a preferred embodiment of the non-magnetic connector with extremely low temperature resistance and high thermal conductivity for connecting extremely fine cables described in this utility model, the nut is made of beryllium bronze.

[0011] As a preferred embodiment of the non-magnetic connector with extremely low temperature resistance and high thermal conductivity for connecting extremely fine cables described in this utility model, the welding bushing is made of beryllium bronze.

[0012] As a preferred embodiment of the non-magnetic connector with extremely low temperature resistance and high thermal conductivity for connecting extremely fine cables described in this utility model, the dielectric sheet is made of polytetrafluoroethylene.

[0013] As a preferred embodiment of the non-magnetic connector described in this utility model, which is resistant to extremely low temperatures and has high thermal conductivity for connecting extremely fine cables, the outer shell is made of beryllium bronze.

[0014] As a preferred embodiment of the non-magnetic connector with extremely low temperature resistance and high thermal conductivity for connecting extremely fine cables described in this utility model, the inner conductor is made of beryllium bronze.

[0015] The beneficial effects of this utility model are:

[0016] Compared with existing connectors, this application can connect to 0.5mm ultra-fine copper-nickel cables, achieving miniaturization, resistance to extremely low temperatures, high thermal conductivity, and operation in non-magnetic environments. Furthermore, the device is easy to process and assemble, especially the structural design of the dielectric sheet, which avoids short circuits and makes the device performance more stable. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the structure of a non-magnetic connector of the present invention, which is resistant to extremely low temperatures and has high thermal conductivity for connecting extremely fine cables.

[0019] Figure 2 This is a partial cross-sectional view of a non-magnetic connector of the present invention, which is resistant to extremely low temperatures and has high thermal conductivity for connecting extremely fine cables.

[0020] Figure descriptions: 100, Connector unit; 101, Nut; 102, Welding bushing; 103, Dielectric sheet; 104, Beryllium bronze bushing; 105, Polytetrafluoroethylene dielectric; 106, Inner conductor; 107, Housing. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0025] When a signal is transmitted through a coaxial connector, it will be reflected when it encounters impedance mismatch (impedance deviating from the characteristic impedance), thus increasing the voltage standing wave ratio (VSWR). To design a coaxial connector with a low VSWR, the impedance of the connector must be uniform along the axial direction. The characteristic impedance of an RF coaxial connector is determined by the diameters of the inner and outer conductors and the dielectric constant of the insulating supporting medium, and the relationship is as follows:

[0026]

[0027] In the formula, Z0 is the characteristic impedance; ε r ε is the relative permittivity; r 'a' is the inner diameter of the outer conductor; 'a' is the outer diameter of the inner conductor.

[0028] Reference Figure 1 - Figure 2 As one embodiment of this utility model, a non-magnetic connector with extremely low temperature resistance and high thermal conductivity for connecting 0.5mm ultra-fine cables is provided, comprising:

[0029] Connector unit 100 includes nut 101, solder bushing 102, dielectric sheet 103, beryllium bronze bushing 104, inner conductor 106, polytetrafluoroethylene dielectric 105, and housing 107. Nut 101 is installed outside solder bushing 102 and inner conductor 106, and nut 101 is screwed to press the bushing and firmly press it into housing 107. Solder bushing 102 is installed outside inner conductor 106. Inner conductor 106 is installed inside housing 107, nut 101, solder bushing 102, dielectric, and dielectric sheet 103. Dielectric sheet 103 is installed between housing 107 and inner conductor 106 to prevent short circuit caused by inner conductor 106 contacting housing 107 due to thermal expansion and contraction.

[0030] Among them, nut 101 is made of beryllium bronze, welding bushing 102 is made of beryllium bronze, dielectric sheet 103 is made of polytetrafluoroethylene, outer shell 107 is made of beryllium bronze, and inner conductor 106 is made of beryllium bronze.

[0031] The beryllium bronze material used in this application enables the connector to maintain good performance even in ultra-low temperature, non-magnetic environments, while also achieving miniaturization and high thermal conductivity, ensuring that the internal environment of the refrigerator remains at a consistently low temperature. The overall structure of the device is very robust and reliable, and the components constituting the device are simple, easy to assemble and mass-produce. Any content not described in detail herein is prior art known to those skilled in the art.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A non-magnetic connector with extremely low temperature resistance and high thermal conductivity for connecting extremely fine cables, characterized in that, include: A connector unit (100) includes a nut (101), a solder bushing (102), a dielectric sheet (103), a beryllium bronze bushing (104), an inner conductor (106), a polytetrafluoroethylene dielectric (105), and a housing (107). The nut (101) is installed outside the solder bushing (102) and the inner conductor (106). The nut (101) is screwed into the bushing and firmly pressed into the housing (107). The solder bushing (102) is installed outside the inner conductor (106). The inner conductor (106) is installed inside the housing (107), the nut (101), the solder bushing (102), the dielectric, and the dielectric sheet (103). The dielectric sheet (103) is installed between the housing (107) and the inner conductor (106) to prevent the inner conductor (106) from contacting the housing (107) due to thermal expansion and contraction, which could cause a short circuit.

2. The non-magnetic connector with extremely low temperature resistance and high thermal conductivity for connecting extremely fine cables according to claim 1, characterized in that: The nut (101) is made of beryllium bronze.

3. The non-magnetic connector with extremely low temperature resistance and high thermal conductivity for connecting extremely fine cables according to claim 1, characterized in that: The welding bushing (102) is made of beryllium bronze.

4. A non-magnetic connector with extremely low temperature resistance and high thermal conductivity for connecting extremely fine cables according to claim 1, characterized in that: The dielectric sheet (103) is made of polytetrafluoroethylene.

5. A non-magnetic connector with extremely low temperature resistance and high thermal conductivity for connecting extremely fine cables according to claim 1, characterized in that: The outer shell (107) is made of beryllium bronze.

6. A non-magnetic connector with extremely low temperature resistance and high thermal conductivity for connecting extremely fine cables according to claim 1, characterized in that: The inner conductor (106) is made of beryllium bronze.

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