RF coaxial cable plug and adapter, and RF connector assembly including same

Abstract

The present invention can provide an RF coaxial cable plug to which an RF coaxial cable is coupled, comprising: a first body into which an RF coaxial cable is inserted; a first conductor arranged inside the first body; a coupling nut arranged outside the first body and rotatably coupled to the first body; and an annular first magnet fixed inside the coupling nut and rotating together with the coupling nut, wherein the first magnet has first and second poles of opposite polarities arranged alternately along the circumferential direction.

Description

[Technical field]

[0001] The present invention relates to a plug and adapter for an RF coaxial cable and an RF connector assembly including the same, and more particularly to a plug and adapter for an RF coaxial cable that can electrically connect a printed circuit board, an RF module, and a coaxial cable and facilitates performance testing, and an RF connector assembly including the same. [Background technology]

[0002] Generally, RF (Radio Frequency) connectors are used to connect equipment and components such as switching center equipment, base station equipment, repeaters, and antennas for wired or wireless communication with RF coaxial cables in order to transmit and receive specific signals such as relatively high frequency RF signals.

[0003] The RF coaxial cable is equipped with various coaxial connectors according to the purpose and signal frequency, and connectors manufactured to suit the structural characteristics of the connecting parts are selected for use. RF connectors are classified into DIN-Type, N-Type, BNC-Type, TNC-Type, SMA-Type, etc., and these classifications are made according to the connector shape, cable type, signal frequency range, coupling method, etc. Typically, to test the performance of the RF coaxial cable and plug assembly, an adapter is connected to the test fixture, and the adapter and plug are fastened together, typically by a threaded engagement.

[0004] However, when using such a conventional RF connector assembly, when testing a plug coupled with an RF coaxial cable, the plug must be screwed into the adapter every time a test is performed, and the adapter and the plug must be unscrewed after the test is completed. Therefore, when testing a large number of plug-cables, the work of fastening and unscrewing the adapter and the plug is cumbersome, and there is a problem that the test takes a long time. Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention has been devised to solve the above problems, and an object of the present invention is to provide a plug and adapter for an RF coaxial cable, which shortens the test time of an RF connector by facilitating fastening and unfastening operations between the adapter and a plug to which an RF coaxial cable is coupled, and an RF connector assembly including the same.

[0006] The problems to be solved by the present invention are not limited to the problems described above, and other problems not mentioned here will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0007] An embodiment can provide an RF coaxial cable plug to which an RF coaxial cable is coupled, comprising: a first body into which the RF coaxial cable is inserted; a first conductor disposed inside the first body; a coupling nut disposed outside the first body and rotatably coupled to the first body; and an annular first magnet fixed inside the coupling nut and rotating together with the coupling nut, wherein the first magnet has first and second poles of opposite polarity alternately arranged along a circumferential direction.

[0008] The first magnet includes a first groove disposed at a boundary between the first pole and the second pole, the first groove being disposed on an outer circumferential surface of the first magnet and extending to a front surface of the first magnet.

[0009] The magnetic disk drive may further include a ring-shaped first shielding member, the first shielding member being in contact with a rear surface of the first magnet.

[0010] The coupling nut includes a first step disposed on an inner surface thereof, and a rear surface of the first shielding member can contact the first step.

[0011] The first magnet includes a second groove arranged on an edge formed by a front surface of the first magnet and an outer peripheral surface of the first magnet, and further includes a first press-fit ring arranged in the second groove, an inner peripheral surface of the first press-fit ring contacts the first magnet, and an outer peripheral surface of the first press-fit ring contacts an inner peripheral surface of the coupling nut to fix the first magnet to the coupling nut.

[0012] The first magnet includes a first hole penetrating a front surface of the first magnet and a back surface of the first magnet, and the coupling nut includes a third groove disposed on an inner surface and aligned with the first hole, and a first press-fit pin can be pressed into the first hole and the third groove to fix the first magnet to the coupling nut.

[0013] An embodiment is an RF coaxial cable adapter to which an RF coaxial cable is coupled, comprising: a second body; a second conductor disposed inside the second body; and an annular second magnet fixed to the outside of the second body, wherein the second magnet has first and second poles of opposite polarity arranged alternately along a circumferential direction.

[0014] The second magnet includes a third groove disposed at a boundary between the first pole and the second pole, the third groove being disposed on an outer circumferential surface of the second magnet and connected to a front surface of the second magnet.

[0015] The magnetic disk drive may further include an annular second shielding member, the second shielding member being in contact with a rear surface of the second magnet.

[0016] The body may include a second step, and a rear surface of the second shielding member may be in contact with the second step.

[0017] the second magnet includes a fourth groove disposed in an edge formed by a front surface of the second magnet and an inner circumferential surface of the second magnet, Further comprising a second press-fit ring disposed in the fourth groove; An inner peripheral surface of the second press-fit ring may contact the second body, and an outer peripheral surface of the second press-fit ring may contact an inner peripheral surface of the second magnet to fix the second magnet to the second body.

[0018] the second magnet includes a second hole penetrating a front surface and a back surface of the second magnet, the second body includes a fifth groove aligned with the second hole; A second press pin may be pressed into the second hole and the fifth groove to secure the second magnet to the second body.

[0019] In the RF connector assembly, when the plug and the adapter are coupled, the first magnet and the second magnet are arranged opposite each other, and when the first pole of the first magnet and the second pole of the second magnet are aligned in the circumferential direction by rotating the coupling nut, the plug and the connector are coupled by the attractive force between the first magnet and the second magnet, and when the first pole of the first magnet and the first pole of the second magnet are aligned in the circumferential direction, the plug and the connector are separated by the repulsive force between the first magnet and the second magnet.

[0020] In the plug, the coupling nut includes an inner part rotatably connected to an outer surface of the first body, and an outer part disposed inside the inner part and slidably connected to the inner part in a front-rear direction. The coupling nut further includes a separation guide part that is elastically deformably fixed to the inner part and includes a tip that is aligned between the first magnet and the second magnet in the front-rear direction, and the separation guide part is disposed to be in contact with an inner surface of the sliding outer part. When the coupling nut moves rearward, the coupling nut pushes the separation guide part to move the tip part in a radial direction, and the tip part is inserted between the first magnet and the second magnet based on the front-rear direction, thereby separating the first magnet and the second magnet.

[0021] The plug further includes an elastic member disposed between the outer portion and the inner portion in the front-rear direction and having a restoring force when contracted, and when the coupling nut is pulled rearward, the elastic member has a restoring force in a contracted state and presses the separation guide portion to move the tip portion between the first magnet and the second magnet, and when the coupling nut is released while being pulled rearward, the separation guide portion is restored to its position before elastic deformation by the restoring force.

[0022] The inner surface of the coupling nut includes a first surface that contacts the separation guide portion, the first surface being formed to have an inner diameter that increases toward the rear, and the separation guide portion being disposed radially inside the elastic member.

[0023] The second body may include a sixth groove formed in a concave shape on a front surface of the second body, and the first body may include a first protrusion inserted into the sixth groove.

[0024] The sixth groove may include a seventh groove recessed therein, and a second protrusion protruding from the first protrusion and inserted into the seventh groove.

[0025] The first protrusion portion may be composed of a plurality of first elastic pieces spaced apart from each other along a circumferential direction, each of the plurality of first elastic pieces may include a locking protrusion protruding in a radial direction, and an inner surface of the sixth groove may include a locking groove into which the locking protrusion is engaged.

[0026] The second body may include a third protrusion protruding from a front surface of the second body, and the first body may include a seventh groove formed in a concave shape on the front surface of the first body, and the third protrusion may be inserted into the seventh groove and may include a plurality of second elastic pieces spaced apart from each other along a circumferential direction. Effect of the Invention

[0027] According to an embodiment, the plug and adapter for an RF coaxial cable and the RF connector assembly including the same have the advantage that the plug and adapter are coupled to each other only by magnetic attraction without screwing, making it easy to couple or separate the plug and adapter.

[0028] According to the embodiment, by making the polarities of the opposing magnets of the plug and the adapter the same or different in conjunction with the rotation of the coupling nut, there is an advantage that the plug and the adapter can be easily fastened and separated by simply rotating the coupling nut.

[0029] According to the embodiment, when the coupling nut is pulled backward, the separation guide portion is elastically deformed and enters between the magnet of the plug and the magnet of the adapter, physically separating the magnet of the plug and the magnet of the adapter, thereby providing an advantage that the plug and the adapter can be easily separated.

[0030] According to an embodiment, one side of the plug body and the adapter body is provided with a protruding structure including an elastic piece that has elasticity and can be contracted or opened, and the other side is provided with a structure that receives and connects it, which has the advantage of ensuring additional connecting force between the plug and adapter in addition to magnetic force and ensuring shielding performance. [Brief description of the drawings]

[0031] [Figure 1] 1 is a side cross-sectional view showing an RF connector assembly according to an embodiment. [Diagram 2] 2 is a view showing the plug shown in FIG. 1; [Diagram 3] FIG. 4 is a plan view showing the first magnet. [Figure 4] 2 is a diagram showing the adapter shown in FIG. 1; [Diagram 5] FIG. 4 is a plan view showing a second magnet. [Figure 6] 1 is a side cross-sectional view showing a connector assembly before the plug and the adapter are coupled together; [Figure 7] 13 is a view showing a plug in which a first magnet is fixed through a first press-fit ring. [Figure 8] 13 is a view showing an adapter in which a second magnet is fixed through a second press-fit ring. [Figure 9] 9 is a side cross-sectional view showing the connector assembly before the plug of FIG. 7 and the adapter of FIG. 8 are coupled together. [Figure 10] 1 is a side cross-sectional view of a connector assembly showing a plug in which a first magnet is fixed to a coupling nut through a first press-fit pin, and an adapter in which a second magnet is fixed to a second body through a second press-fit pin. FIG. [Figure 11] FIG. 2 is a plan view of a first magnet including a first hole. [Figure 12] FIG. 4 is a plan view of a second magnet including a second hole. [Figure 13] 4 is a diagram showing the relative positions of a first magnet and a second magnet. [Figure 14] 1 is a side cross-sectional view of a connector assembly including a separation guide portion; [Figure 15] 11 is a side cross-sectional view of a connector assembly in which a plug and an adapter are separated by a separation guide portion; [Figure 16] 1 is a side cross-sectional view of a connector assembly including a plug and an adapter forming a multi-tiered coupling relationship; [Figure 17] 1 is a side cross-sectional view of a connector assembly including a plug and an adapter forming a mating relationship of a tension structure included in the plug. [Figure 18] 18 is a diagram showing the connector assembly shown in FIG. 17, showing the plug and the adapter before being coupled. [Figure 19] 1 is a side cross-sectional view of a connector assembly including a plug and an adapter forming a mating relationship of a tension structure included in the adapter. [Figure 20] 20 is a diagram showing the connector assembly shown in FIG. 19, showing the plug and adapter before they are coupled together; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0032] The object, particular advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments in conjunction with the accompanying drawings. The terms and words used in the present specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted as meanings and concepts that correspond to the technical ideas of the present invention, based on the principle that the inventor can appropriately define the concepts of terms in order to best describe his / her invention. In describing the present invention, detailed descriptions of related known technologies that may obscure the gist of the present invention will be omitted.

[0033] In describing components of the embodiments of the present invention, terms such as first, second, A, B, etc. are used. Such terms are used to distinguish the components from other components, and are not intended to limit the essence, order, or sequence of the components.

[0034] 1 is a side cross-sectional view showing an RF connector assembly according to an embodiment. In the drawings, the y-axis indicates the axial direction of the RF connector assembly, and the z-axis indicates the radial direction of the RF connector assembly. In the following, the front side and the rear side are based on the axial direction, and in the plug reference, the direction from the plug to the adapter is the front side, and the opposite direction is the rear side. In the adapter reference, the direction from the adapter to the plug is the front side, and the opposite direction is the rear side. In the following, the inside and outside are based on the radial direction.

[0035] 1, an RF connector assembly according to an embodiment may include a plug 100 and an adapter 200. The plug 100 and the adapter 200 are coaxially coupled. A cable (not shown) is coupled to the plug 100. Since the plug 100 and the adapter 200 are coupled by magnetic force, a screw thread for coupling the plug 100 and the adapter 200 is omitted. The plug 100 includes a first magnet 140, and the adapter 200 includes a second magnet 240. The first magnet 140 and the second magnet 240 are disposed facing each other.

[0036] FIG. 2 is a diagram showing the plug 100 shown in FIG.

[0037] 1 and 2, the plug 100 may include a first body 110, a first conductor 120, a coupling nut 130, a first magnet 140, and a first shielding member 150.

[0038] A cable is inserted into the first body 110. The first body 110 may include a first protrusion portion (P1). The first protrusion portion (P1) protrudes forward from a front surface of the first body 110.

[0039] The first conductor 120 is disposed inside the first body 110. The first conductor 120 is for electrical connection with the adapter 200. An insulator is disposed between the first body 110 and the first conductor 120 in the radial direction.

[0040] The coupling nut 130 is disposed on the outside of the first body 110. The first body 110 and the first magnet 140 are disposed on the inside of the coupling nut 130.

[0041] The coupling nut 130 may be rotatably coupled to the outer surface of the first body 110 around the axis. For example, a C-ring (C) may be disposed between the inner peripheral surface of the coupling nut 130 and the outer peripheral surface of the first body 110, and the coupling nut 130 may be rotated around the first body 110 around the axis by a user's operation.

[0042] The first magnet 140 is fixed inside the coupling nut 130. The first magnet 140 is annular. The outer peripheral surface of the first magnet 140 can contact the inner surface of the coupling nut 130. The first magnet 140 is pressed into the inner surface 131 of the coupling nut 130. A first protrusion (P1) is located inside the first magnet 140. The tip of the first conductor 120 protrudes forward beyond the front end of the first magnet 140.

[0043] The inner space of the coupling nut 130, in front of the first magnet 140, corresponds to a space S1 of the adapter 200 in which the first magnet 140 is housed.

[0044] The first shielding member 150 contacts the back surface of the first magnet 140. The first shielding member 150 blocks the magnetic force of the first magnet 140 from flowing to the rear side of the first magnet 140, and causes the magnetic force that has flowed to the rear side to flow to the front side. The coupling nut 130 includes a first step (ST1) disposed on the inner surface. The back surface of the first shielding member 150 contacts the first step (ST1).

[0045] FIG. 3 is a plan view showing the first magnet 140. As shown in FIG.

[0046] 3, the first magnet 140 is an annular member with a hole 140a formed in the center. The first magnet 140 has a first pole (N) and a second pole (S) with different polarities arranged alternately along the circumferential direction. For example, the first magnet 140 is divided into four poles arranged along the circumferential direction, and the first pole (N) and the second pole (S) are arranged alternately along the circumferential direction. In the first magnet 140, the total area occupied by the first pole (N) is the same as the total area occupied by the second pole (S). The total area occupied by each of the four poles is also the same.

[0047] The first magnet 140 may include a 1-1 groove 141. The 1-1 groove 141 is disposed at the boundary between the first pole (N) and the second pole (S). The 1-1 groove 141 is formed in a concave shape on the outer circumferential surface of the first magnet 140. The 1-1 groove 141 is connected to the front surface of the first magnet 140. The 1-1 groove 141 is intended to indicate the positions of the first pole (N) and the second pole (S).

[0048] FIG. 4 is a diagram showing the adapter 200 shown in FIG.

[0049] 1 and 4, the adapter 200 may include a second body 210, a second conductor 220, a second shielding member 230, and a second magnet 240.

[0050] The second body 210 has a sixth groove (G6) formed at its front end. The sixth groove (G6) is formed in a concave shape on the front surface of the second body 210. When the plug 100 and the adapter 200 are coupled together, the first protrusion (P1) of the plug 100 is inserted into the sixth groove (G6).

[0051] The second conductor 220 is disposed inside the second body 210. The second conductor 220 is for electrical connection with the plug 100.

[0052] The second shielding member 230 contacts the back surface of the second magnet 240. The second shielding member 230 blocks the magnetic force of the second magnet 240 from flowing to the rear side of the second magnet 240. The coupling nut 130 includes a second step (ST2) disposed on the inner surface. The back surface of the second shielding member 230 contacts the second step (ST2).

[0053] FIG. 5 is a plan view showing the second magnet 240. As shown in FIG.

[0054] 5, the first magnet 140 and the second magnet 240 have the same size and shape. The second magnet 240 is an annular member with a hole 240a formed in the center. The second magnet 240 has a first pole (N) and a second pole (S) with different polarities arranged alternately along the circumferential direction. For example, the second magnet 240 is divided into four poles arranged along the circumferential direction, and the first pole (N) and the second pole (S) are arranged alternately along the circumferential direction.

[0055] In the second magnet 240, the total volume occupied by the first pole (N) is the same as the total volume occupied by the second pole (S). The total volumes occupied by each of the four poles are also the same.

[0056] The second magnet 240 may include a 1-2 groove 241. The 1-2 groove 241 is disposed at the boundary between the first pole (N) and the second pole (S). The 1-2 groove 241 is formed in a concave shape on the outer circumferential surface of the first magnet 140. The 1-2 groove 241 is connected to the front surface of the first magnet 140. The 1-2 groove 241 is intended to indicate the positions of the first pole (N) and the second pole (S).

[0057] FIG. 6 is a side cross-sectional view showing the connector assembly before plug 100 and adapter 200 are mated.

[0058] 6, when the plug 100 and the adapter 200 are positioned coaxially, the first magnet 140 and the second magnet 240 are disposed facing each other. The plug 100 and the adapter 200 are coupled to or separated from each other using the magnetic force flowing between the first magnet 140 and the second magnet 240 without a screw thread for rotational fastening.

[0059] FIG. 7 is a view showing the plug 100 in which the first magnet 140 is fixed through the first press-fit ring 160. As shown in FIG.

[0060] 7, for example, the first magnet 140 is fixed to the coupling nut 130 through a first press-fit ring 160. The first magnet 140 may include a second groove (G2). The second groove (G2) is disposed on an edge formed by a front surface of the first magnet 140 and an outer circumferential surface of the first magnet 140. The first press-fit ring 160 is pressed into a space formed by the second groove (G2) and the inner surface of the coupling nut 130.

[0061] When the first press-fit ring 160 is disposed in the second groove (G2), the inner circumferential surface of the first press-fit ring 160 contacts the first magnet 140. Then, the outer circumferential surface of the first press-fit ring 160 contacts the inner surface of the coupling nut 130.

[0062] FIG. 8 is a view showing an adapter 200 in which a second magnet 240 is fixed through a second press-fit ring, and FIG. 9 is a side cross-sectional view showing the connector assembly before the plug 100 of FIG. 7 and the adapter 200 of FIG. 8 are coupled.

[0063] 8 and 9, for example, the second magnet 240 is fixed to the second body 210 through a second press ring 250.

[0064] The second magnet 240 may include a fourth groove (G4). The fourth groove (G4) is disposed on an edge formed by a front surface of the second magnet 240 and an inner peripheral surface of the second magnet 240. The second press-fit ring 250 is pressed into a space formed by the fourth groove (G4) and the outer peripheral surface of the second body 210.

[0065] When the second press-fit ring 250 is disposed in the fourth groove (G4), the outer circumferential surface of the second press-fit ring 250 contacts the second magnet 240. And, the inner circumferential surface of the second press-fit ring 250 contacts the outer circumferential surface of the second body 210.

[0066] FIG. 10 is a side cross-sectional view of a connector assembly showing a plug 100 in which a first magnet 140 is fixed to a coupling nut 130 via a first press-fit pin 170, and an adapter 200 in which a second magnet 240 is fixed to a second body 210 via a second press-fit pin 260, FIG. 11 is a plan view of the first magnet 140 including a first hole (H1), and FIG. 12 is a plan view of the second magnet 240 including a second hole (H2).

[0067] 10 and 11, for example, the first magnet 140 is fixed to the coupling nut 130 through a first press-fit pin 170.

[0068] The first magnet 140 may include a first hole (H1). The first hole (H1) is disposed penetrating the front surface of the first magnet 140 and the back surface of the first magnet 140. A plurality of first holes (H1) are disposed. For example, four first holes (H1) are disposed at regular intervals in the circumferential direction.

[0069] Meanwhile, the coupling nut 130 may include a third groove (G3). The third groove (G3) is disposed on the inner surface of the coupling nut 130. The third groove (G3) is disposed on the rear side of the first magnet 140 and aligned with the first hole (H1). The first press-fit pin 170 is pressed into the first hole (H1) and the third groove (G3), thereby fixing the first magnet 140 to the coupling nut 130.

[0070] 10 and 12, for example, the second magnet 240 is fixed to the second body 210 through a second press-fit pin 260. As shown in FIG.

[0071] The second magnet 240 may include a second hole (H2). The second hole (H2) is disposed penetrating the front surface of the second magnet 240 and the back surface of the second magnet 240. A plurality of second holes (H2) are disposed. For example, four second holes (H2) are disposed at regular intervals in the circumferential direction.

[0072] Meanwhile, the second body 210 may include a fifth groove G5. The fifth groove G5 is disposed on the rear side of the second magnet 240 and aligned with the second hole H2.

[0073] The second press-fit pin 260 is pressed into the second hole (H2) and the fifth groove (G5), thereby fixing the second magnet 240 to the second body 210.

[0074] FIG. 13 is a diagram showing the relative positions of the first magnet 140 and the second magnet 240. As shown in FIG.

[0075] 1 and 13, when the coupling nut 130 rotates, the first magnet 140 also rotates. Therefore, when viewed from the second magnet 240 of the adapter 200, the polarity of the opposing first magnet 140 at any one point in the circumferential direction of the second magnet 240 changes in conjunction with the rotation of the coupling nut 130.

[0076] Therefore, when the user rotates the coupling nut 130 so that the first pole (N) of the first magnet 140 and the second pole (S) of the second magnet 240 are aligned in the circumferential direction as shown in (a) of FIG. 13, the plug 100 and the connector are coupled together due to the attractive force between the first magnet 140 and the second magnet 240.

[0077] Conversely, if the user rotates the coupling nut 130 so that the first pole (N) of the first magnet 140 and the first pole (N) of the second magnet 240 are aligned in the circumferential direction, as shown in (b) of FIG. 13, the plug 100 and the connector are separated due to the repulsive force between the first magnet 140 and the second magnet 240.

[0078] FIG. 14 is a side cross-sectional view of a connector assembly including a separation guide portion, and FIG. 15 is a side cross-sectional view of a connector assembly in which plug 100 and adapter 200 are separated by the separation guide portion.

[0079] 14 and 15, the coupling nut 130 is divided into an inner part 130A and an outer part 130B. The inner part 130A is rotatably coupled to the outer surface of the first body 110. The outer part 130B is disposed inside the inner part 130A and is axially slidably coupled to the inner part 130A. When a user rotates the outer part 130B about the axis, the outer and inner parts 130A rotate together. Since the first magnet 140 is fixed to the inner part 130A, the first magnet 140 also rotates together.

[0080] The plug 100 includes an elastic member 180 that is disposed between the outer portion 130B and the inner portion 130A in the axial direction and has a restoring force when contracted.

[0081] Meanwhile, the plug 100 may include a separation guide portion 190. The separation guide portion 190 serves to physically assist the separation of the first magnet 140 and the second magnet 240. The separation guide portion 190 is fixed to a front surface of the inner portion 130A.

[0082] The separation guide portion 190 may include a tip portion 191 at its tip. The tip portion 191 may protrude toward the center of the shaft and may have a pointed end. The separation guide portion 190 may be a single member formed in a ring shape, or may be formed by combining a plurality of elastic pieces spaced apart from each other in the circumferential direction. The separation guide portion 190 is located inside the elastic member 180 in the radial direction.

[0083] The inner surface of the coupling nut 130 may include a first surface that contacts the outer surface of the separation guide portion 190. The first surface may be formed such that the inner diameter increases toward the inner portion 130A located on the rear side.

[0084] As shown in FIG. 14, when the outer portion 130B of the coupling nut 130 is not pulled, the outer portion 130B is positioned forward by the elastic member 180, and the first surface and the separation guide portion 190 are separated from each other.

[0085] 15, when the user rotates the outer portion 130B to align the first pole (N) of the first magnet 140 with the first pole (N) of the second magnet 240, generating a repulsive force between the first magnet 140 and the second magnet 240, and then pulls the outer portion 130B, the receding first surface (SF1) pushes the separation guide portion 190 toward the axial center. In this manner, when the separation guide portion 190 is pushed, the tip portion 191 moves toward the axial center and enters the space between the first magnet 140 and the second magnet 240, making it easier to separate the first magnet 140 and the second magnet 240.

[0086] FIG. 16 is a side cross-sectional view of a connector assembly including a plug 100 and an adapter 200 forming a multi-tiered coupling relationship.

[0087] Referring to FIG. 16, the plug 100 and the adapter 200 form a multi-stage structure coupling relationship, which can improve coupling strength and shielding performance between the plug 100 and the adapter 200.

[0088] When the plug 100 and the adapter 200 are coupled together, the first protrusion (P1) of the plug 100 is inserted into the sixth groove (G6) of the adapter 200.

[0089] The plug 100 may include a second protrusion (P2) that protrudes so as to be stepped forward from the first protrusion (P1).

[0090] The adapter 200 may include a seventh groove (G7) that is recessed so as to be stepped with the sixth groove (G6).

[0091] When the plug 100 and the adapter 200 are coupled together, the second protrusion (P2) of the plug 100 is inserted into the seventh groove (G7) of the adapter 200.

[0092] In this manner, the first body 110 of the plug 100 and the second body 210 of the adapter 200 are overlapped and coupled in a multi-stage structure, which increases the contact area and thus has the advantage of improving coupling strength and shielding performance.

[0093] FIG. 17 is a side cross-sectional view of a connector assembly including a plug 100 and an adapter 200 that form a coupling relationship through a tension structure included in the plug 100, and FIG. 18 shows the connector assembly illustrated in FIG. 17, showing the plug 100 and adapter 200 before coupling.

[0094] 17 and 18, the coupling relationship between the plug 100 and the adapter 200 may include coupling by a tension structure included in the plug 100.

[0095] The first protrusion (P1) of the plug 100 may be composed of a plurality of first elastic pieces (P1a) spaced apart from each other along the circumferential direction.

[0096] The first elastic piece (P1a) may include an outwardly protruding locking projection (P1b) at its tip.

[0097] The adaptor 200 may include a locking groove (G6a) that is engaged with the locking protrusion (P1b). The locking groove (G6a) is formed in an outwardly concave shape on the inner surface of the sixth groove (G6).

[0098] When the plug 100 and the adapter 200 are coupled together, the first elastic piece (P1a) contracts and enters the sixth groove (G6), and after entering, the locking protrusion (P1b) is caught in the locking groove (G6a). The locking protrusion (P1b) and the locking groove (G6a) are constrained to each other in the axial direction, which can increase the coupling force between the plug 100 and the adapter 200.

[0099] FIG. 19 is a side cross-sectional view of a connector assembly including a plug 100 and an adapter 200 that form a coupling relationship through a tension structure included in the adapter 200, and FIG. 20 shows the connector assembly illustrated in FIG. 19, showing the plug 100 and adapter 200 before coupling.

[0100] 19 and 20, the coupling relationship between the plug 100 and the adapter 200 may include coupling by a tension structure included in the adapter 200.

[0101] The second body 210 may include a third protrusion P3. The third protrusion P3 protrudes from a front surface of the second body 210.

[0102] The third protrusion (P3) may be composed of a plurality of second elastic pieces (P3a) spaced apart from each other along the circumferential direction.

[0103] The second elastic piece (P3a) may include a locking projection (P3b) protruding inwardly at its tip.

[0104] The first body 110 of the plug 100 includes a seventh groove (G7). The third protrusion (P3) is inserted into the seventh groove (G7). The seventh groove (G7) may include a locking groove (G7a) that is engaged with the locking protrusion (P3b). The locking groove (G7a) is formed in an outwardly concave shape on the inner surface of the seventh groove (G7).

[0105] When the plug 100 and the adapter 200 are coupled, the second elastic piece (P3a) opens and enters the seventh groove (G7), and after entering, is caught by the locking protrusion (P3b) and the locking groove (G7a). The locking protrusion (P3b) and the locking groove (G7a) are constrained to each other in the axial direction, which can increase the coupling force between the plug 100 and the adapter 200.

[0106] The RF coaxial cable plug and adapter according to a preferred embodiment of the present invention, and the RF connector assembly including the same, have been specifically described above with reference to the accompanying drawings.

[0107] It should be understood that the above-described embodiment of the present invention is illustrative in all respects and is not limiting, and the scope of the present invention is defined by the following claims rather than the above detailed description. Furthermore, it should be understood that the meaning and scope of the claims, as well as any modifications or variations derived from the equivalent concept, are included in the scope of the present invention. [Industrial Applicability]

[0108] The present invention finds application in the field of manufacturing RF coaxial cable plug and connector assemblies.

Claims

1. In a plug for an RF coaxial cable to which an RF coaxial cable is coupled, a first body into which the RF coaxial cable is inserted; a first conductor disposed inside the first body; a coupling nut disposed outside the first body and rotatably coupled to the first body; a first magnet having an annular shape fixed to an inside of the coupling nut and rotating together with the coupling nut; The first magnet has first and second poles having different polarities arranged alternately along a circumferential direction.

2. the first magnet includes a first groove disposed at a boundary between the first pole and the second pole, The RF coaxial cable plug according to claim 1 , wherein the first groove is disposed on an outer peripheral surface of the first magnet and is connected to a front surface of the first magnet.

3. Further comprising an annular first shielding member, The RF coaxial cable plug according to claim 1 , wherein the first shielding member contacts a rear surface of the first magnet.

4. The coupling nut includes a first step disposed on an inner surface thereof, The RF coaxial cable plug according to claim 3 , wherein a rear surface of the first shielding member contacts the first step.

5. the first magnet includes a second groove disposed in an edge formed by a front surface of the first magnet and an outer circumferential surface of the first magnet, a first press-fit ring disposed in the second groove; 2. The RF coaxial cable plug of claim 1, wherein an inner circumferential surface of the first press-fit ring contacts the first magnet and an outer circumferential surface of the first press-fit ring contacts an inner circumferential surface of the coupling nut to fix the first magnet to the coupling nut.

6. The first magnet includes a first hole penetrating a front surface of the first magnet and a back surface of the first magnet, the coupling nut includes a third groove disposed on an inner surface thereof and aligned with the first hole; 2. The RF coaxial cable plug of claim 1, wherein a first press-fit pin is pressed into said first hole and said third groove to secure said first magnet to said coupling nut.

7. In an RF coaxial cable adapter to which an RF coaxial cable is coupled, A second body; a second conductor disposed inside the second body; a ring-shaped second magnet fixed to the outside of the second body, The second magnet has first poles and second poles having different polarities arranged alternately along a circumferential direction.

8. the second magnet includes a third groove disposed at a boundary between the first pole and the second pole, The RF coaxial cable adapter according to claim 7 , wherein the third groove is disposed on an outer circumferential surface of the second magnet and is connected to a front surface of the second magnet.

9. Further including an annular second shielding member; The RF coaxial cable adapter according to claim 7 , wherein the second shielding member contacts a rear surface of the second magnet.

10. the body includes a second step; The RF coaxial cable adapter according to claim 9 , wherein a rear surface of the second shielding member contacts the second step.

11. the second magnet includes a fourth groove disposed in an edge formed by a front surface of the second magnet and an inner circumferential surface of the second magnet, a second press-fit ring disposed in the fourth groove; 8. The RF coaxial cable adapter of claim 7, wherein an inner peripheral surface of the second press-fit ring contacts the second body and an outer peripheral surface of the second press-fit ring contacts an inner peripheral surface of the second magnet to fix the second magnet to the second body.

12. the second magnet includes a second hole penetrating a front surface and a back surface of the second magnet, the second body includes a fifth groove aligned with the second hole; 8. The RF coaxial cable adapter of claim 7, wherein a second press-fit pin is pressed into the second hole and the fifth groove to secure the second magnet to the second body.

13. In an RF connector assembly, A plug according to any one of claims 1 to 6; and an adapter according to any one of claims 7 to 12, When the plug and the adapter are coupled together, The first magnet and the second magnet are disposed opposite to each other, By rotating the coupling nut, When the first pole of the first magnet and the second pole of the second magnet are aligned in the circumferential direction, the plug and the adapter are coupled together by the attractive force between the first magnet and the second magnet, An RF connector assembly, wherein when a first pole of the first magnet and a first pole of the second magnet are aligned in a circumferential direction, the plug and the adapter are separated by a repulsive force between the first magnet and the second magnet.

14. The plug, the coupling nut includes an inner portion rotatably coupled to an outer surface of the first body, and an outer portion disposed inside the inner portion and slidably coupled to the inner portion in a front-rear direction, a separation guide part including a tip part that is elastically deformably fixed to the inner part and aligned between the first magnet and the second magnet in a front-rear direction, The separation guide portion is arranged so as to be able to come into contact with the inner surface of the sliding outer portion, 14. The RF connector assembly of claim 13, wherein when the coupling nut moves rearward, the coupling nut pushes the separation guide portion to move the tip portion radially, and the tip portion is inserted between the first magnet and the second magnet based on the front-rear direction, thereby separating the first magnet and the second magnet.

15. The plug further includes an elastic member disposed between the outer portion and the inner portion in the front-rear direction and having a restoring force when contracted, When the coupling nut is pulled rearward, the elastic member has a restoring force in a contracted state, and pushes the separation guide portion to move the tip portion between the first magnet and the second magnet, 15. The RF connector assembly according to claim 14, wherein when the coupling nut is pulled rearward and then released, the separation guide portion is restored to its position before elastic deformation by a restoring force.

16. An inner surface of the coupling nut includes a first surface that contacts the separation guide portion, The first surface is formed so that an inner diameter thereof becomes larger toward the rear side, The RF connector assembly according to claim 15 , wherein the separation guide portion is disposed radially inward of the elastic member.

17. 14. The RF connector assembly of claim 13, wherein the second body includes a sixth groove formed concavely in a front surface of the second body, and the first body includes a first protrusion inserted into the sixth groove.

18. The sixth groove includes a seventh groove recessed therein; 18. The RF connector assembly of claim 17, including a second protrusion protruding from said first protrusion and inserted into said seventh groove.

19. The first protrusion portion is composed of a plurality of first elastic pieces spaced apart from each other along a circumferential direction, Each of the first elastic pieces includes a locking projection that protrudes in a radial direction, The RF connector assembly according to claim 17 , wherein an inner surface of the sixth groove includes a locking groove into which the locking projection is hooked.

20. The second body includes a third protrusion protruding from a front surface of the second body, the first body includes a seventh groove formed in a concave shape on a front surface of the first body, 14. The RF connector assembly according to claim 13, wherein the third protrusion is comprised of a plurality of second elastic pieces inserted into the seventh groove and spaced apart from one another along a circumferential direction.

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