Cable insulation connector

Abstract

According to the present invention, disclosed is a cable insulation connector which comprises: a housing having a through-hole formed therein; a first outer conductor having a hollow structure including a first outer conductor insertion unit inserted into one side of the through-hole; a second outer conductor having a hollow structure including a second outer conductor insertion unit inserted into the other side of the through-hole; and an inner conductor inserted into the hollow spaces of the first outer conductor and the second outer conductor, wherein the first outer conductor and the second outer conductor are spaced apart from each other in both axial and radial directions.

Description

Cable insulation connector

[0001] The present invention relates to a cable insulation connector for connecting coaxial cables to each other, and more specifically, to a cable insulation connector that blocks heat transmitted in the axial direction of a coaxial cable and transmits a signal while maintaining signal characteristics.

[0002] Systems that handle space or quantum signals (e.g., quantum computing systems) require the ability to isolate extremely weak RF signals. To isolate these weak RF signals, thermal noise in the system environment must be minimized, so these systems typically operate at cryogenic temperatures. Furthermore, to maintain this cryogenic environment, heat transfer through the coaxial cables used for RF signal transmission must be minimized. Therefore, technologies that prevent heat conduction through the coaxial cables are necessary.

[0003] As a technology to prevent heat from being conducted through a coaxial cable, a method of replacing a portion of the outer conductor of a coaxial cable with a capacitor has been proposed, as in Japanese Patent Publication No. 2002-25358 (January 25, 2002, hereinafter referred to as Patent Document 1) and Korean Patent Registration Publication No. 10-1248819 (March 25, 2013, hereinafter referred to as Patent Document 2). Patent Documents 1 and 2 propose a method of inserting a capacitor into the outer conductor of a coaxial cable to block heat conducted through the outer conductor and maintain smooth signal transmission.

[0004] However, since the capacitance of a capacitor inserted into an external conductor is proportional to the cross-sectional area of ​​the capacitor electrode and inversely proportional to the distance between the electrodes, as the axial length of the capacitor, i.e., the axial separation distance between the external conductors, is increased to increase the insulation effect, the capacitance decreases, making signal transmission difficult.

[0005] One could consider increasing the area of ​​the capacitor electrodes to compensate for the capacitance that decreases as the distance between external conductors increases, but this would increase the diameter of the coaxial cable and capacitor, thus limiting the types and fields of systems to which it can be applied.

[0006] Therefore, a new technology is needed to prevent heat conduction through coaxial cables connected to the system and to facilitate signal transmission while minimizing diameter increase.

[0007] The present invention is intended to solve the problems of the prior art as described above, and to provide a cable insulation connector that can smoothly transmit signals while blocking axial heat conduction of a coaxial cable.

[0008] In particular, the purpose is to provide a cable insulation connector that can transmit signals smoothly even when the separation distance between external conductors is increased to block heat conduction.

[0009] In addition, the purpose is to provide a cable insulation connector that can transmit signals smoothly while blocking axial heat conduction of a coaxial cable without increasing the diameter.

[0010] The purpose of the present invention is not limited to what has been described above, and other purposes and advantages of the present invention that are not mentioned can be understood by the following description.

[0011]

[0012] A cable insulation connector according to an embodiment of the present invention comprises: a housing having a through hole formed therein; a first outer conductor having a hollow structure including a first outer conductor insertion portion inserted into one side of the through hole; a second outer conductor having a hollow structure including a second outer conductor insertion portion inserted into the other side of the through hole; and an inner conductor inserted into the hollow of the first outer conductor and the second outer conductor and extending in the axial direction; wherein a first surface, which is an end surface of the first outer conductor insertion portion, and a second surface of the second outer conductor insertion portion, which is axially opposite to the first surface, are spaced apart from each other by a second distance (D2) in the axial direction to form a second separation space, and the second outer conductor insertion portion includes an extension portion formed in a hollow structure so as to extend from the second surface in the axial direction toward the first outer conductor and surround at least a portion of the first outer conductor insertion portion, and a length (D3) of the extension portion is characterized in that it is greater than the second distance (D2).

[0013] In an embodiment of the present invention, the extension portion and the insertion surface of the first external conductor insert portion inserted into the extension portion are spaced apart in the diametric direction by a first gap (D1) to form a first separation space, and the first separation space and / or the second separation space may be filled with a dielectric such as air.

[0014] In an embodiment of the present invention, the inner surface of the first outer conductor and the second outer conductor and the outer surface of the inner conductor are spaced apart from each other by a predetermined distance to form a second internal space, and the second internal space can be filled with a dielectric such as air.

[0015] In an embodiment of the present invention, the first outer conductor may be formed with a first outer conductor connector portion for connecting a coaxial cable on an axially opposite side of the first outer conductor insertion portion, and the second outer conductor may be formed with a second outer conductor connector portion for connecting a coaxial cable on an axially opposite side of the second outer conductor insertion portion.

[0016] In an embodiment of the present invention, an insulating material may be further included, which is inserted into the interior of the first external conductor connector portion or the second external conductor connector portion and includes an insertion hole into which the internal conductor is inserted.

[0017] In an embodiment of the present invention, a first external conductor flange portion is formed to protrude diametrically outward between the first external conductor insertion portion and the first external conductor connector portion, and a second external conductor flange portion is formed to protrude diametrically outward between the second external conductor insertion portion and the second external conductor connector portion, and the first external conductor flange portion and the second external conductor flange portion can each limit the length at which the first external conductor and the second external conductor are inserted into the housing.

[0018] In an embodiment of the present invention, the housing may be formed of a material including polyether-ether-ketone (PEEK).

[0019] A cable insulation connection assembly according to another embodiment of the present invention comprises a plate including a plurality of installation holes into which a plurality of cable insulation connectors are respectively inserted and installed, and a first outer conductor and a second outer conductor of the cable insulation connector are exposed on opposite sides with respect to the plate.

[0020]

[0021] The cable insulation connector according to the present invention is connected between coaxial cables and has the effect of blocking heat conduction through the coaxial cable.

[0022] In addition, there is an effect of enabling smooth signal transmission even when the axial separation distance is increased to block heat conduction by separating the first outer conductor and the second outer conductor of the cable insulation connector in both the axial and diametric directions.

[0023] In addition, by forming an extension in the second external conductor and configuring it to surround the first external conductor, there is an effect of being able to transmit signals smoothly while blocking heat conduction without increasing the diameter.

[0024] The effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art to which the present invention pertains from the description below.

[0025]

[0026] FIG. 1 is a perspective view (a) and a side view (b) of a cable insulation connector according to one embodiment of the present invention.

[0027] Figure 2 is an exploded perspective view of a cable insulation connector according to one embodiment of the present invention.

[0028] Figure 3 is a cross-sectional view of a cable insulation connector according to one embodiment of the present invention.

[0029] Figure 4 is a partial enlarged view of part A of Figure 3.

[0030] Figures 5 to 8 are simulation results for explaining the signal transmission characteristics of a cable insulation connector according to one embodiment of the present invention.

[0031] FIG. 9 is a perspective view (a) and a plan view (b) of a cable insulation connection assembly according to another embodiment of the present invention.

[0032]

[0033] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings, but the present invention is not limited or restricted by the embodiments.

[0034] In order to explain the present invention, its operational advantages, and the purpose achieved by the practice of the present invention, preferred embodiments of the present invention are exemplified and examined with reference thereto below.

[0035] First, the terms used in this application are only used to describe specific embodiments and are not intended to limit the present invention, and the singular expression may include plural expressions unless the context clearly indicates otherwise. In addition, it should be understood that the terms "comprise" or "have" in this application are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, and do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0036] In describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted.

[0037]

[0038] The present invention relates to a cable insulation connector that is connected between coaxial cables to transmit signals, and an embodiment of the present invention will be described below with reference to the drawings.

[0039] Fig. 1 is a perspective view (a) and a side view (b) of a cable insulation connector according to an embodiment of the present invention. In addition, Fig. 2 is an exploded perspective view of a cable insulation connector according to an embodiment of the present invention, wherein Fig. 2(a) is an exploded perspective view in which a first outer conductor and a second outer conductor are separated from a housing, and Fig. 2(b) is an exploded perspective view in which the first outer conductor and the second outer conductor are coupled to a housing and an inner conductor and an insulation are separated.

[0040]

[0041] Referring to FIGS. 1 and 2, a cable insulation connector (1) according to one embodiment of the present invention may include a first outer conductor (100), a second outer conductor (200), an inner conductor (300), a housing (400), and an insulation material (500).

[0042] The housing (400) is configured to fix the first external conductor (100) and the second external conductor (200). The housing (400) may be formed in a cylindrical shape with a through hole therein, and housing screw threads (410) may be formed at a certain section from the entrances on both sides of the through hole to couple the first external conductor (100) and the second external conductor (200). In addition, a groove (430) formed to be sunken to a certain length may be formed on the outer surface of the housing (400) to facilitate fixing with a clamp, a spanner, etc.

[0043] The housing (400) may be made of a material with excellent strength to protect the first external conductor (100) and the second external conductor (200) from external impact.

[0044] The housing (400) may be formed of a non-conductive material having a low heat transfer rate so that heat transfer through the housing (400) does not occur between the first external conductor (100) and the second external conductor (200). As an example, the housing (400) may be formed of a material including polyether-ether-ketone (PEEK), which can maintain strength even at extremely low temperatures and has excellent insulation properties.

[0045]

[0046] The first outer conductor (100) may be formed in a hollow structure so that the inner conductor (300) can be inserted. When the housing (400) has a cylindrical shape, the first outer conductor (100) may also be formed in a cylindrical shape. A first outer conductor insertion portion (110) to be inserted into a through hole of the housing (400) may be formed on one side of the first outer conductor (100), and a first outer conductor connector portion (150) connected to a coaxial cable (not shown) may be formed on the other side of the first outer conductor (100). A first outer conductor flange portion (140) that protrudes outward may be formed between the first outer conductor insertion portion (110) and the first outer conductor connector portion (150).

[0047] The first external conductor insertion portion (110) may have first external conductor screw threads (130) formed in at least some sections. The first external conductor (100) may be fixed to the housing (400) by the first external conductor screw threads (130) being combined with the housing screw threads (410).

[0048] The first external conductor connector section (150) can be connected to a coaxial cable (not shown) by forming a first external conductor connector section screw thread (151) at a certain section.

[0049] The first external conductor flange portion (140) can limit the length at which the first external conductor (200) is inserted into the interior of the housing (400). That is, the diameter of the first external conductor flange portion (140) can be formed to be larger than the diameter of the through hole of the housing (400), so that when the first external conductor insertion portion (110) is inserted into the through hole of the housing (400), it can be configured so that it is no longer inserted by the first external conductor flange portion (140).

[0050] As an example, the first external conductor (100) may be formed of a material having excellent electrical conductivity, such as copper, stainless steel, and aluminum.

[0051]

[0052] The second outer conductor (200) may be formed in a hollow structure so that the inner conductor (300) can be inserted. When the housing (400) has a cylindrical shape, the second outer conductor (200) may also be formed in a cylindrical shape. A second outer conductor insertion portion (210) to be inserted into a through hole of the housing (400) may be formed on one side of the second outer conductor (200), and a second outer conductor connector portion (250) connected to a coaxial cable (not shown) may be formed on the other side of the second outer conductor (200). A second outer conductor flange portion (240) may be formed to protrude outward between the second outer conductor insertion portion (210) and the second outer conductor connector portion (250).

[0053] The second external conductor insertion portion (210) may have second external conductor screw threads (230) formed in at least some sections. The second external conductor (200) may be fixed to the housing (400) by the second external conductor screw threads (230) being combined with the housing screw threads (410).

[0054] The second external conductor connector section (250) can be connected to a coaxial cable (not shown) by forming a second external conductor connector section screw thread (251) at a certain section.

[0055] The second external conductor flange portion (240) can limit the length at which the second external conductor (200) is inserted into the interior of the housing (400). That is, the diameter of the second external conductor flange portion (240) can be formed to be larger than the diameter of the through hole of the housing (400), so that when the second external conductor (200) is inserted into the through hole of the housing (400), it can be configured so that it is no longer inserted by the second external conductor flange portion (240).

[0056] As an example, the second external conductor (200) may be formed of a material having excellent electrical conductivity, such as copper, stainless steel, and aluminum.

[0057]

[0058] The first external conductor (100) and the second external conductor (200) can be inserted into each side of the through hole of the housing (400), and fixed so as to be spaced apart from each other by a certain distance in the axial direction (see FIGS. 3 and 4). The first external conductor (100) and the second external conductor (200) can be connected to a coaxial cable (not shown) to form a ground and block external noise.

[0059] The inner conductor (300) is formed in a long rod shape and inserted into the hollow portions of the first outer conductor (100) and the second outer conductor (200). At both ends of the inner conductor (300), an inner conductor pin (310) is formed, which includes a recessed groove into which the inner conductor of the coaxial cable is inserted, so that the inner conductor of the coaxial cable can be connected. As an example, the inner conductor (300) can be made of a conductive material including copper or the like to ensure smooth signal transmission of the cable insulation connector (1).

[0060] An insulating material (500) may be provided to fix the inner conductor (300) to the inside of the first outer conductor (100) and the second outer conductor (200). The insulating material (500) may be formed in a cylindrical shape including an insertion hole into which the inner conductor (300) is inserted. The insulating material (500) may be inserted into the inside of each of the first outer conductor connector portion (150) and the second outer conductor connector portion (250). The inner conductor (300) may be fixed by the insulating material (500) while maintaining a gap with the first outer conductor (100) and the second outer conductor (200). The insulating material (500) may block heat transmitted from the coaxial cable when the outer conductor connector portions (150, 250) are connected to the coaxial cable. The insulation (500) can be formed of a material including polytetra fluoroethylene (PTFE) with low heat transfer rate.

[0061]

[0062] Figure 3 is a cross-sectional view of a cable insulation connector according to one embodiment of the present invention.

[0063] Referring to FIG. 3, the first external conductor (100) and the second external conductor (200) can be inserted and fixed into the housing (400) from both sides, respectively. As an example, the first external conductor screw thread (130) and the second external conductor screw thread (230) can be screw-connected to the housing screw thread (410) formed at a certain section on the inner surface of the housing (400), respectively.

[0064] The connection of the first external conductor (100) and the second external conductor (200) with the housing (400) is not limited to a screw connection. That is, the first external conductor (100) and the second external conductor (200) may be connected to the through-hole of the housing (400) in a force-fit manner. Alternatively, the first external conductor (100) and the second external conductor (200) with the housing (400) may be connected using an adhesive.

[0065] A step (420) may be formed at the entrances of the through holes on both sides of the housing (400) to limit the depth at which the first external conductor (100) and the second external conductor (200) are inserted. As illustrated in FIG. 3, a step may also be formed at the first external conductor flange portion (140) and the second external conductor flange portion (240), so that the depth at which the first external conductor (100) and the second external conductor (200) are inserted into the interior of the housing (400) may be limited by contacting the step (420) of the housing.

[0066]

[0067] The cable insulation connector (1) according to the present invention is formed by inserting a first outer conductor (100) and a second outer conductor (200) into a housing (400) and connecting them, and the first outer conductor (100) and the second outer conductor (200) are spaced apart in the axial and diametric directions. Hereinafter, the connecting structure of the first outer conductor (100) and the second outer conductor (200) will be described in more detail with reference to FIG. 3 and FIG. 4, which is an enlarged view of part A of FIG. 3.

[0068] Referring to FIGS. 3 and 4, the first surface (121) of the first external conductor (100) and the second surface (221) of the second external conductor (200), which are axially opposed to each other inside the housing (400), are spaced apart from each other by a second gap (D2). The first surface (121) is an end surface of the first external conductor insertion portion (110), and the second surface (221) is an end surface of the second external conductor insertion portion (210) that is opposed to the first surface (121).

[0069] In addition, the second external conductor insertion portion (210) includes an extension portion (220) that extends axially from the second surface (221) toward the first external conductor (100). The extension portion (220) is formed as a hollow structure so that the first external conductor insertion portion (110) can be inserted. For example, the extension portion (200) may be formed in a cylindrical shape that surrounds the first external conductor insertion portion (110). The inner diameter of the extension portion (220) is formed to be larger than the outer diameter of the first external conductor insertion portion (110) that is inserted into the extension portion (220).

[0070] As shown in Fig. 4, the extension (220) has a thickness of D4 and can form a gap of the first gap (D1) with the insertion surface (120) of the first external conductor insertion portion inserted into the extension (220).

[0071] Due to this bonding structure, a first internal space (600) is formed in the area where the first outer conductor (100) and the second outer conductor (200) face each other. The first internal space (600) includes a second separation space (620), which is a space spaced apart by a second gap (D2) between the first surface (121) and the second surface (221), and a first separation space (610), which is a space spaced apart by a first gap (D1) between the insertion surface (120), which is a portion inserted into the extension portion (220) of the first outer conductor insertion portion (110), and the extension portion (220).

[0072] A capacitor can be formed between the first outer conductor (100) and the second outer conductor (200) by the first separation space (610) and the second separation space (620). At this time, the first outer conductor (100) and the second outer conductor (200) can each function as electrodes of the capacitor. That is, the first separation space (610) can form a first capacitor having the insertion surface (120), which is a portion inserted into the extension portion (220) of the first outer conductor insertion portion (110), and the extension portion (220) of the second outer conductor (200) as electrodes. In addition, the second separation space (620) can form a second capacitor having the first surface (121) and the second surface (221) as electrodes.

[0073] Since the first outer conductor (100) and the second outer conductor (200) are axially spaced apart from each other by the second separation space (620), axial heat conduction between the first outer conductor (100) and the second outer conductor (200) is blocked. As the second gap (D2), which is the axial length of the second separation space (620), increases, the heat conduction blocking ability can be improved. However, as the second gap (D2) increases, the separation distance between the first surface (121) and the second surface (221), which function as electrodes of the second capacitor, increases, so the capacitance of the second capacitor decreases. This may have a negative effect on the signal transmission characteristics through the cable insulation connector (1).

[0074] According to the present invention, the deterioration of the signal transmission characteristics can be compensated for by additionally forming a first capacitor in addition to the second capacitor. That is, even when the first outer conductor (100) and the second outer conductor (200) are axially spaced apart so that the second gap (D2) is equal to or greater than a predetermined value for thermal conduction blocking, the first capacitor can be formed in such a way that the first outer conductor (100) is inserted into an extension portion (200) extending from the second outer conductor (200) so as to face each other in the diametric direction, thereby improving the overall capacitance.

[0075] The capacitance of the first capacitor can be adjusted by adjusting the extension length (D3). That is, the area of ​​the first capacitor can be determined by the value obtained by subtracting the second gap (D2) from the extension length (D3). According to the present invention, even if the capacitance of the first capacitor is increased by increasing the extension length (D3), the diameter of the cable insulation connector does not increase, so there is no problem of the application field being limited by the diameter.

[0076] The first external conductor (100) and the second external conductor (200) are coupled to the housing (400) and their relative positions are fixed, so that the first gap (D1) and the second gap (D2) can be maintained constant.

[0077] The first gap (D1) and the second gap (D2) can be adjusted depending on the environment of the system in which the cable insulation connector (1) is installed. That is, in a system in which a lot of heat is expected to be transferred through the coaxial cable, the first gap (D1) and / or the second gap (D2) can be increased to further block heat conduction.

[0078] As an example, the first internal space (600) may be filled with a dielectric material. The dielectric material filled in the first internal space (600) may be air having a thermal conductivity of 0.015 to 0.03 W / mK. The dielectric material filled in the first internal space (600) is not limited to air, and may be filled with a different dielectric material depending on the environment and type of the system to which the cable insulation connector (1) is applied. As an example, the dielectric material filled in the first internal space (600) may be appropriately changed to adjust the internal impedance of the cable insulation connector (1) to 50 or 75 Ω, which is the impedance used in a coaxial cable.

[0079] The first gap (D1), second gap (D2), extension length (D3), extension thickness (D4) and shape can be designed differently depending on the required capacitance and impedance.

[0080]

[0081] Referring to FIG. 3, a second internal space (700) can be formed between the inner conductor (300) and the first outer conductor (100) and the second outer conductor (200). The second internal space (700) can be filled with a dielectric material so that the gap between the first outer conductor (100) and the inner conductor (300) and the gap between the second outer conductor (200) and the inner conductor (300) can be maintained constant. The dielectric material filled in the internal space (700) can be air.

[0082]

[0083] Although not shown, a dielectric may be inserted into some sections of the inner conductor (300). For example, a dielectric may be inserted into the inner conductor (300) in a section exposed to the second separation space (620) where the first outer conductor (100) and the second outer conductor (200) are axially spaced apart. An inner conductor capacitor is formed by the dielectric inserted into the inner conductor (300), thereby blocking axial heat conduction through the inner conductor (300). The dielectric inserted into the inner conductor may be formed of ceramic such as alumina, and the length and material may be changed in consideration of the internal impedance of the cable insulation connector (1).

[0084]

[0085] Figures 5 to 8 are graphs showing the results of simulations for explaining the signal transmission characteristics of a cable insulation connector according to an embodiment of the present invention, in which the strength of a reflected signal is expressed in relation to the input signal. The graphs presented in Figures 5 to 8 show the signal transmission characteristics in terms of the ratio (dB) of the reflected signal to the input signal for a frequency range of 3 GHz to 8 GHz, which is mainly used in cryogenic processing devices. In the simulation, it can be determined that the signal is transmitted smoothly only when the reflected signal is lost more than -20 dB compared to the input.

[0086] Fig. 5(a) and (b) are graphs showing the simulation results of signal transmission characteristics of a cable insulation connector (1) depending on the presence or absence of an extension (220). In Fig. 5(a) and Fig. 5(b), the first gap (D1) is 0.1 mm, the second gap (D2) is 1.5 mm, and Fig. 5(a) shows the result when the extension length (D3) is 0 (extension not formed), and Fig. 5(b) shows the result when the extension length (D3) is 3.5 mm. According to Fig. 5(a), when the extension (220) is not formed, the reflection loss is 10 dB or less in the range of 3 GHz to 8 GHz, indicating that signal transmission is not smooth in the frequency band. On the other hand, as can be seen in Fig. 5(b), when forming the extension (220), unlike Fig. 5(a), the reflection loss was 20 dB or more at all frequencies from 3 GHz to 8 GHz, so that signal transmission was smooth. That is, by increasing the capacitance formed between the first external conductor (100) and the second external conductor (200) by allowing the second external conductor (200) to surround the first external conductor (100) by the extension (220), it can be seen that the signal transmission characteristics can be maintained while effectively blocking heat conduction by the second gap (D2).

[0087]

[0088] Figure 6 shows the simulation results according to the change in the first gap (D1) of the cable insulation connector. While the second gap (D2) and the extension length (D3) were fixed, the first gap (D1) was varied within the range of 0.1 to 0.3 mm. Depending on the first gap (D1), the frequency at which the maximum reflection loss occurs shifted toward high frequencies, and the maximum reflection loss tended to decrease. In other words, by adjusting the first gap (D1), a signal in a desired frequency band can be smoothly transmitted through a coaxial cable.

[0089]

[0090] Fig. 7 shows the simulation results according to the second gap (D2) of the cable insulation connector. As the second gap (D2) increases, the frequency at which the maximum reflection loss occurs moves toward a lower frequency, and the maximum reflection loss according to the second gap (D2) did not differ significantly, within about 2 dB. In other words, when the extension (220) is formed, even if the second gap (D2) is increased to block heat conduction, the intensity of the transmission signal can be maintained while adjusting only the frequency characteristics of the transmission signal to change.

[0091]

[0092] Fig. 8 shows simulation results according to the extension length (D3) of a cable insulation connector. As the extension length (D3) increases, the frequency at which maximum reflection loss occurs shifts toward lower frequencies, and the maximum reflection loss tends to increase. In other words, as the extension (220) increases, the intensity of the transmission signal can increase. Accordingly, the cable insulation connector (1) can adjust the extension length (D3) to ensure appropriate signal transmission in the range of 3 GHz to 8 GHz, which is suitable for cryogenic processing devices.

[0093] In this way, the cable insulation connector according to the present invention can be configured by appropriately adjusting the first interval (D1), the second interval (D2), and the extension length (D3) according to the type of application system.

[0094] In addition, the type of system to which the cable insulation connector (1) according to the present invention is applied is not limited to a cryogenic processing device.

[0095]

[0096] Fig. 9 is a perspective view (a) and a plan view (b) of a cable insulation connection assembly (2) according to another embodiment of the present invention. The cable insulation connection assembly (2) according to another embodiment of the present invention includes a plate (20) and a plurality of cable insulation connectors (21). The cable insulation connectors (21) may be the same as the cable insulation connectors (1) described in Figs. 1 to 4.

[0097] The plate (20) may include a plurality of installation holes for inserting and installing cable insulation connectors (21). The plurality of cable insulation connectors (21) may be inserted and installed in each installation hole of the plate (20). The first outer conductor of each cable insulation connector (21) may be exposed on the upper side of the plate (20) and connected to a coaxial cable (not shown), and the second outer conductor may be exposed on the lower side of the plate (20) and connected to another coaxial cable (not shown). That is, the cable insulation connection assembly (2) may connect a plurality of coaxial cables on the upper and lower sides to each other.

[0098] As an example, a plurality of cable insulation connectors (21) may be arranged in three, four, or three positions horizontally from above on the plate (2). The arrangement of the cable insulation connectors (21) may be arranged differently as needed depending on the type and number of coaxial cables to be connected, or the configuration of the system.

[0099] The plate (20) can be applied in different sizes depending on the shape and purpose of the structure in which the cable insulation connection assembly (2) is installed and the type of system to be applied.

[0100] As an example, the plate (20) may be provided with a connecting through hole (22) so that the plate (20) can be fixed by being combined with a structure. That is, the plate (20) can be fixed in close contact with the structure by combining a fastener, such as a bolt, with the structure through the connecting through hole (22). The number and position of the connecting through holes (22) may be changed depending on the shape and purpose of the structure to be combined.

[0101]

[0102] The above description is merely an illustrative illustration of the technical idea of ​​the present invention, and those skilled in the art will appreciate that various modifications and variations can be made without departing from the essential characteristics of the present invention. Therefore, the embodiments described in the present invention are not intended to limit the technical idea of ​​the present invention, but rather to illustrate it, and the technical idea of ​​the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within a scope equivalent thereto should be interpreted as being included in the scope of the rights of the present invention.

Claims

1. A housing with a through hole formed inside; A first external conductor having a hollow structure including a first external conductor insertion portion inserted into one side of the above through hole; A second external conductor having a hollow structure including a second external conductor insertion portion inserted into the other side of the above through hole; An inner conductor inserted into the hollow of the first outer conductor and the second outer conductor and extending in the axial direction; The first surface, which is the end surface of the first external conductor insertion portion, and the second surface, which is axially opposite to the first surface, of the second external conductor insertion portion are spaced apart in the axial direction by a second interval (D2) to form a second separation space. The second external conductor insertion portion includes an extension portion formed as a hollow structure that extends axially from the second surface toward the first external conductor and surrounds at least a portion of the first external conductor insertion portion. A cable insulation connector characterized in that the length (D3) of the above extension is greater than the second gap (D2).

2. In paragraph 1, The above extension portion and the insertion surface of the first external conductor insert portion inserted into the above extension portion are spaced apart from each other by a first gap (D1) in the diametric direction to form a first separation space. A cable insulation connector characterized in that the first separation space is filled with a dielectric.

3. In paragraph 1, A cable insulation connector characterized in that the second separation space is filled with a dielectric.

4. In paragraph 1, The inner surfaces of the first and second outer conductors and the outer surface of the inner conductor are spaced apart from each other by a predetermined distance to form a second internal space, A cable insulation connector characterized in that the second internal space is filled with a dielectric.

5. In any one of paragraphs 2 to 4, A cable insulation connector characterized in that the dielectric is air.

6. In paragraph 1, The first outer conductor is formed with a first outer conductor connector portion for connecting a coaxial cable to the opposite side of the first outer conductor insertion portion in the axial direction, A cable insulation connector characterized in that the second outer conductor is formed with a second outer conductor connector portion for connecting a coaxial cable on the opposite side of the second outer conductor insertion portion in the axial direction.

7. In paragraph 6, A cable insulation connector characterized in that it further includes an insulation material inserted into the inside of the first external conductor connector portion or the second external conductor connector portion and including an insertion hole into which the internal conductor is inserted.

8. In paragraph 1, Between the first external conductor insertion portion and the first external conductor connector portion, a first external conductor flange portion is formed to protrude diametrically outward, Between the second external conductor insertion portion and the second external conductor connector portion, a second external conductor flange portion is formed to protrude diametrically outward, A cable insulation connector characterized in that the first outer conductor flange portion and the second outer conductor flange portion each limit the length at which the first outer conductor and the second outer conductor are inserted into the housing.

9. In paragraph 1, A cable insulation connector characterized in that the housing is formed of a material including polyether-ether-ketone (PEEK).

10. A cable insulation connection assembly comprising a plurality of cable insulation connectors of paragraph 1, A plate including a plurality of installation holes into which the plurality of cable insulation connectors are each inserted and installed; A cable insulation connection assembly characterized in that the first outer conductor and the second outer conductor of each cable insulation connection are exposed on opposite sides with respect to the plate.

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