High-power-resistant SMA type bent connector

Abstract

The utility model relates to a high-power-resistant SMA type bent connector. The high-power-resistant SMA type bent connector comprises a shell, the first insulator is arranged in the vertical cavity; the second insulator is arranged in the transverse cavity; the pin piece is of a right-angle structure, a vertical rod of the pin piece is arranged in the first insulator in a penetrating mode, and a cross rod at the upper end of the pin piece is arranged in the second insulator in a penetrating mode; a jack member, wherein the jack member is arranged in the second insulator; and the third insulator is embedded at the right end of the second insulator, and an inner cavity of the third insulator is embedded with the insulating layer of the radio frequency cable. And a section of embedded fourth insulator is introduced at the right angle, so that a straight-through air gap between the inner conductor and the outer conductor is eliminated, the creepage distance is increased, the usable power upper limit is improved, and the high-power-resistant use requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency coaxial adapters, specifically to a high-power SMA type bendable connector. Background Technology

[0002] A connector is a mechanical component with electrical connection characteristics. Its main function is to provide electrical connection and signal transmission between various interfaces. It is one of the essential basic components for the electrical connection of the whole machine circuit system.

[0003] In recent years, with the rapid development of wireless communication and radar technology, it is essential to increase the transmission power of a system to improve its transmission range. As an integral part of the entire microwave system, the RF coaxial connector needs to be able to withstand the transmission requirements of high power.

[0004] Currently, in the power-capable structure design of SMA type bend connectors, the right angle is a weak point that limits its power. Usually, when designing insulators at right angles, a surface-to-surface bonding method is used to reduce the air gap, or a two-body insulation interlocking method is used to reduce the through air gap between the inner and outer conductors. These methods have improved the usable power limit of SMA type bend connectors to a certain extent, but there is still a through air gap at some point. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a high-power SMA type bent connector, which solves the technical problem that the insulator sealing performance of the previous bent connector at the right angle is poor and there is an air gap, thus affecting the upper limit of the connector power.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] Provides a high-power SMA type bend connector including

[0008] The outer shell has a right-angled structure and has vertical and horizontal cavities inside.

[0009] The first insulator is disposed in the vertical cavity, and the upper end of the first insulator forms a first inclined surface;

[0010] The second insulator is disposed in the transverse cavity, and a second inclined surface is formed at the left end of the second insulator, which is sealed and fitted with the first inclined surface;

[0011] The pin assembly has a right-angle structure, with its vertical rod passing through the first insulator and its upper horizontal rod passing through the second insulator.

[0012] The socket component is disposed inside the second insulator, with its left end engaging with the crossbar of the pin component and its right end suitable for welding with the core wire of the radio frequency cable.

[0013] The third insulator is fitted into the right end of the second insulator, and the inner cavity of the third insulator is fitted into the insulation layer of the radio frequency cable.

[0014] Furthermore, an upper fitting cavity is formed at the upper end of the first insulator, an upper fitting block is provided in the upper fitting cavity, the upper fitting block is provided with a first sealing convex surface and a pair of first sealing concave surfaces, and the upper fitting cavity is provided with a first sealing plane.

[0015] The fourth insulator has a left fitting block and a notch at its left end. The left fitting block has a second sealing plane, a second sealing concave surface and a pair of second sealing convex surfaces.

[0016] The right end of the fourth insulator is sealed and plugged into the second insulator. When its left end is engaged with the upper cavity of the first insulator through the left fitting block, the pin passes through the notch. The second sealing plane is sealed and engaged with the first sealing plane. The first sealing concave surface is sealed and engaged with the second sealing convex surface. The first sealing convex surface is sealed and engaged with the second sealing concave surface.

[0017] Furthermore, a washer, a sleeve, and a lock nut are provided inside the transverse cavity;

[0018] The washer is fitted onto the outside of the third insulator and is adapted to provide support;

[0019] The sleeve is located to the right of the washer and is fitted onto the outside of the outer shielding layer of the RF cable. The sleeve is welded to the outer shielding layer of the RF cable.

[0020] The locking nut is threaded at the right end of the transverse cavity, and the locking nut abuts against the sleeve axially.

[0021] Furthermore, a threaded sleeve is provided on the outer shell, and the threaded sleeve is secured to the outer shell by a C-shaped retaining ring.

[0022] Furthermore, the third insulator has a large-diameter hole and a small-diameter hole, the small-diameter hole being suitable for the radio frequency cable core wire to pass through, and the large-diameter hole being suitable for the insertion of the radio frequency cable insulation layer.

[0023] Furthermore, barbs are provided inside the vertical cavity, and the barbs cooperate with the outer wall of the first insulator to restrict the axial position of the first insulator inside the vertical cavity.

[0024] The beneficial effects of this utility model are:

[0025] The high-power SMA type bend connector of this invention introduces an embedded fourth insulator at the right angle to eliminate the direct air gap between the inner and outer conductors, increase the creepage distance, and improve its upper limit of usable power to meet its high-power requirements. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of the high-power SMA type bent connector of this utility model;

[0028] Figure 2 This is a schematic diagram of the first insulator;

[0029] Figure 3 This is a schematic diagram of the second insulator;

[0030] Figure 4 This is a schematic diagram of the third insulator;

[0031] Figure 5 This is a schematic diagram of the fourth insulator;

[0032] Among them, 1. outer shell, 11. pin, 12. socket, 13. washer, 14. sleeve, 15. lock nut;

[0033] 2. Screw sleeve; 21. Snap ring;

[0034] 3. First insulator; 31. First inclined surface; 32. First sealing plane; 33. Upper interlocking block; 331. First sealing convex surface; 332. First sealing concave surface;

[0035] 4. Second insulator; 41. Second inclined plane;

[0036] 5. Third insulator; 51. Small diameter hole; 52. Large diameter hole;

[0037] 6. Fourth insulator; 61. Notch; 62. Left interlocking block; 621. Second sealing plane; 622. Second sealing concave surface; 623. Second sealing convex surface.

[0038] 71. First sealing ring; 72. Second sealing ring; 73. Third sealing ring. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] This application provides a high-power SMA type bendable connector, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0041] To address the technical problem in existing right-angle connectors where poor insulator sealing at right angles results in air gaps that affect the connector's power limit, an embodiment of this application provides a high-power SMA-type right-angle connector. This is described in detail below.

[0042] like Figures 1 to 5 As shown, a high-power SMA type bend connector includes...

[0043] The outer shell 1 has a right-angled structure and a vertical cavity and a horizontal cavity are formed inside the outer shell 1;

[0044] The first insulator 3 is disposed in the vertical cavity, and the upper end of the first insulator 3 forms a first inclined surface 31;

[0045] The second insulator 4 is disposed in the transverse cavity, and the left end of the second insulator 4 forms a second inclined surface 41, which is sealed and fitted with the first inclined surface 31.

[0046] The pin component 11 has a right-angle structure, with its vertical rod passing through the first insulator 3 and its upper horizontal rod passing through the second insulator 4.

[0047] The plug-in component 12 is disposed inside the second insulator 4. Its left end is plugged into the crossbar of the pin component 11, and its right end is suitable for welding to the core wire of the radio frequency cable.

[0048] The third insulator 5 is fitted into the right end of the second insulator 4, and the inner cavity of the third insulator 5 is fitted into the insulation layer of the radio frequency cable.

[0049] Specifically, as an optional implementation method in this embodiment, such as Figure 2As shown, the upper end of the first insulator 3 has an upper fitting cavity, and an upper fitting block 33 is provided in the upper fitting cavity. The upper fitting block 33 is provided with a first sealing convex surface 331 and a pair of first sealing concave surfaces 332. The upper fitting cavity is provided with a first sealing plane 32.

[0050] like Figure 5 As shown, the fourth insulator 6 has a left fitting block 62 and a notch 61 at its left end. The left fitting block 62 has a second sealing plane 621, a second sealing concave surface 622 and a pair of second sealing convex surfaces 623.

[0051] The right end of the fourth insulator 6 is sealed and plugged into the second insulator 4. When its left end is engaged with the upper cavity of the first insulator 3 through the left fitting block 62, the pin 11 passes through the notch 61. The second sealing plane 621 is sealed and engaged with the first sealing plane 32. The first sealing concave surface 332 is sealed and engaged with the second sealing convex surface 623. The first sealing convex surface 331 is sealed and engaged with the second sealing concave surface 622.

[0052] like Figure 3 As shown, the second insulator 4 has a mounting hole on its left end, and the right end of the fourth insulator 6 is sealed and inserted into the mounting hole. The area where the fourth insulator 6 mates with the mounting hole is a cylindrical structure.

[0053] Specifically, as an optional implementation method in this embodiment, such as Figure 1 As shown, a washer 13, a sleeve 14, and a locking nut 15 are provided inside the transverse cavity;

[0054] The washer 13 is fitted onto the outside of the third insulator 5 and is adapted to provide support;

[0055] The sleeve 14 is located to the right of the washer 13 and is fitted onto the outside of the outer shielding layer of the radio frequency cable. The sleeve 14 is welded to the outer shielding layer of the radio frequency cable.

[0056] The locking nut 15 is threaded at the right end of the transverse cavity. The locking nut 15 axially abuts against the sleeve 14, that is, it axially abuts against the third insulator 5 and the second insulator 4, so that the first inclined surface 31 and the second inclined surface 41 are tightly fitted together, and the upper fitting block 33 and the left fitting block 62 are tightly fitted together.

[0057] In this embodiment, the inner hole of the sleeve 14 is designed with a groove structure. The groove structure can improve the flow of molten welding liquid during welding, avoid incomplete welding, and improve the reliability of the weld point.

[0058] Specifically, as an optional implementation method in this embodiment, such as Figure 1 As shown, a screw sleeve 2 is provided on the outer shell 1, and the screw sleeve 2 is fastened to the outer shell 1 by a C-shaped retaining ring 21.

[0059] Specifically, as an optional implementation method in this embodiment, such as Figure 1 and Figure 4 As shown, the third insulator 5 has a large-diameter hole 52 and a small-diameter hole 51. The small-diameter hole 51 is suitable for the radio frequency cable core wire to pass through, and the large-diameter hole 52 is suitable for the radio frequency cable insulation layer to be inserted.

[0060] Specifically, as an optional implementation method in this embodiment, such as Figure 1 As shown, barbs are provided inside the vertical cavity, and the barbs cooperate with the outer wall of the first insulator 3 to restrict the axial position of the first insulator 3 inside the vertical cavity.

[0061] In this embodiment, the screw sleeve 2 is equipped with a safety thread hole. During use, the connection with steel wire can prevent the screw sleeve 2 from loosening due to vibration after the connection is made, thus providing connection reliability and sealing.

[0062] In this embodiment, a first sealing ring 71 is provided on the outside of the locking nut 15, a second sealing ring 72 is provided on the inside, and a third sealing ring 73 is provided at the lower end of the outer shell 1. The three sealing rings provide dustproof and waterproof protection for the inside of the connector, which helps to ensure high power requirements.

[0063] In this embodiment, the insulator is used for insulation support to maintain the coaxiality between the pin 11, the socket 12 and the inner hole of the outer shell 1.

[0064] In this embodiment, the insulator is made of polytetrafluoroethylene (PTFE), which has excellent mechanical strength, dielectric strength, and high temperature resistance.

[0065] In this embodiment, the pin 11 and the socket 12 are fixed in the insulator. Multiple slots are opened at the left end of the socket 12 so that the left end of the socket 12 has radial elasticity. The pin 11 and the socket 12 form a radial elastic connection.

[0066] The working principle of this high-power SMA type bent connector:

[0067] The first insulator 3 and the third insulator 5 form a direct inclined surface fit. A fourth insulator 6 is added at the inclined surface fit. The right end of the fourth insulator 6 is directly inserted and sealed to the second insulator 4, while the left end of the fourth insulator 6 is fitted and sealed to the upper end of the first insulator 3. The upper fitting block 33 of the first insulator 3 is sealed to the second sealing concave surface 622 and the second sealing convex surface 623 of the left fitting block 62 of the fourth insulator 6 through the first sealing convex surface 331 and a pair of first sealing concave surfaces 332 respectively. The first sealing plane 32 of the first insulator 3 fits with the second sealing plane 621 of the left fitting block 62. All the fitting surfaces fit together with each other, and the first inclined surface 31 and the second inclined surface 41 fit together with each other. The large diameter hole 52 of the third insulator 5 fits the radio frequency cable insulation layer. This insulation medium fitting and bonding configuration can effectively reduce the direct air gap between the inner and outer conductors, increase the creepage distance, and increase its usable power limit.

[0068] All the devices (parts whose specific structures are not specified) selected in this application are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0069] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0070] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0071] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0072] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0073] In addition, in the various embodiments of this utility model, each functional unit can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0074] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A high power resistant SMA type bend connector, characterized by, Comprising a housing (1) in right angle structure, a vertical cavity and a horizontal cavity are formed in the housing (1); a first insulator (3) is arranged in the vertical cavity, a first inclined surface (31) is formed at the upper end of the first insulator (3); a second insulator (4) is arranged in the horizontal cavity, a second inclined surface (41) is formed at the left end of the second insulator (4), and the second inclined surface (41) is tightly sealed with the first inclined surface (31); a pin member (11) in right angle structure, a vertical rod of the pin member (11) is arranged in the first insulator (3), and a horizontal rod of the pin member (11) is arranged in the second insulator (4); a socket member (12) is arranged in the second insulator (4), the left end of the socket member (12) is inserted into the horizontal rod of the pin member (11), and the right end of the socket member (12) is adapted to be welded with a radio frequency cable core wire; a third insulator (5) is embedded in the right end of the second insulator (4), and an inner cavity of the third insulator (5) is embedded with an insulating layer of the radio frequency cable.

2. The SMA type bending connector according to claim 1, wherein an upper embedding cavity is formed at the upper end of the first insulator (3), an upper embedding block (33) is arranged in the upper embedding cavity, the upper embedding block (33) is provided with a first sealing convex surface (331) and a pair of first sealing concave surfaces (332), and the upper embedding cavity is provided with a first sealing plane (32); a fourth insulator (6) is provided with a left embedding block (62) and a notch (61) at the left end of the fourth insulator (6), the left embedding block (62) is provided with a second sealing plane (621), a second sealing concave surface (622) and a pair of second sealing convex surfaces (623); the fourth insulator (6) is sealingly inserted into the second insulator (4) at the right end, and when the left embedding block (62) is matched with the upper embedding cavity of the first insulator (3), the pin member (11) passes through the notch (61), the second sealing plane (621) is sealingly matched with the first sealing plane (32), the first sealing concave surface (332) is sealingly matched with the second sealing convex surface (623), and the first sealing convex surface (331) is sealingly matched with the second sealing concave surface (622).

3. The SMA type bending connector according to claim 1, wherein a gasket (13), a sleeve (14) and a locking nut (15) are arranged in the horizontal cavity; the gasket (13) is sleeved on the outside of the third insulator (5) and is adapted to support; the sleeve (14) is located at the right side of the gasket (13) and is sleeved on the outside of the outer shielding layer of the radio frequency cable, and the sleeve (14) is welded with the outer shielding layer of the radio frequency cable; the locking nut (15) is threadedly connected at the right end of the horizontal cavity, and the locking nut (15) is axially tightly pressed against the sleeve (14).

4. The SMA type bending connector according to claim 3, wherein a screw sleeve (2) is arranged on the housing (1), and the screw sleeve (2) is clamped on the housing (1) by a C-shaped clasp ring (21).

5. The high power resistant SMA type elbow connector according to claim 1, characterized in that, the third insulator (5) is provided with a large diameter hole (52) and a small diameter hole (51), the small diameter hole (51) is suitable for the radio frequency cable core wire to pass through, and the large diameter hole (52) is suitable for the radio frequency cable insulation layer to be inserted.

6. The high power resistant SMA type elbow connector according to claim 1, characterized in that, the vertical cavity is provided with a barb, and the barb cooperates with the outer wall of the first insulator (3), so as to limit the axial position of the first insulator (3) in the vertical cavity.

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