Lightning protection radio frequency electric connector

Abstract

The invention relates to the technical field of electric connectors, in particular to a lightning protection radio frequency electric connector which comprises a radio frequency connector shell, a threaded shell and a connecting cylinder, the outer side of a radio frequency cable is fixedly welded to the left end of a first spiral wire, and the outer side of a shielding sleeve is fixedly welded to the left end of a second spiral wire. The outer side of the plug pin cylinder is electrically connected with a connecting wire, the other end of the connecting wire is welded and fixed to the welding position of the right end of the first spiral wire and the welding position of the right end of the second spiral wire, and the inner wall of the shielding sleeve and the inner wall of the right end of the outer coaxial pin assembly make contact with the first insulator in an attached mode. The inner coaxial pin assembly is communicated with an electric connecting line of an external radio frequency plug cord, the pin cylinder is communicated with a ground line of the external radio frequency plug cord, and through the arrangement, the connector device has a good lightning protection effect on radio frequency signals on the premise that the connector device is light in weight and high in electric connection reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical connectors, in particular to a lightning protection radio frequency electrical connector. Background Art

[0002] When electronic and electrical equipment is used outdoors, it may be struck by lightning when encountering thunderstorms. The surge current generated by the lightning strike flows through the cable into the connector, and finally into the electronic and electrical equipment through the connector, causing interference or permanent damage to it. Therefore, lightning protection devices are installed inside the electronic and electrical equipment to guide the lightning into the equipment casing for grounding. Take the lightning protection RF electrical connector as an example.

[0003] Some lightning-proof RF electrical connectors have heavy connector devices, poor electrical connection reliability, poor lightning protection effect on RF signals, and are inconvenient to regularly disassemble, maintain and repair the connector devices. Therefore, a lightning-proof RF electrical connector is proposed to address the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a lightning protection radio frequency electrical connector to solve the problems of some lightning protection radio frequency electrical connectors, such as the heavy weight of the connector device, poor electrical connection reliability, poor lightning protection effect for radio frequency signals, and inconvenience in regular disassembly, maintenance and repair of the connector device.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A lightning-proof RF electrical connector, comprising an RF connector shell, a threaded shell and a connecting cylinder, the RF connector shell and the threaded shell are threadedly assembled, a connecting cylinder is fixedly arranged on the right end of the threaded shell, a first rubber pad is fixedly arranged inside the threaded shell, a connecting plate is fixedly arranged inside the RF connector shell, an RF connector body and a pin cylinder are installed inside the RF connector shell, a pressure cap is provided on the right side of the connecting cylinder, a spring pad is placed in the screw mounting groove on the right side of the pressure cap, a cross-slot pan head screw is threadedly assembled inside the connecting cylinder and the pressure cap, the RF connector body comprises an outer coaxial pin assembly, a barrier ring, an inner coaxial pin assembly, a RF cable, a second rubber pad, a plug, a first insulator, a shielding sleeve, a first spiral wire, a second spiral wire, a connecting piece, an insulating piece, a connecting pin, A second insulator and an outer shell, a barrier ring is fixedly provided inside the outer coaxial pin assembly, an inner coaxial pin assembly is fixedly provided inside the barrier ring, the right end of the inner coaxial pin assembly is electrically connected to the RF cable, a second rubber pad is fixedly provided inside the outer coaxial pin assembly, the inner part of the outer coaxial pin assembly is threadedly assembled with the insert barrel, a first insulator is placed inside the insert barrel, and the inner part of the insert barrel is threadedly assembled with the shielding sleeve, the outer side of the RF cable is welded and fixed to the left end of the first spiral wire, the outer side of the shielding sleeve is welded and fixed to the left end of the second spiral wire, a connecting piece is electrically connected to the right side of the RF cable, an insulating piece is fixed on the left end of the connecting piece, and a connecting pin is electrically connected to the right end of the connecting piece, a second insulator is installed on the outer side of the connecting pin, and a shell is threadedly assembled on the outer side of the shielding sleeve.

[0007] Preferably, the first rubber pad is in close contact with the RF connector housing, and the second rubber pad is in close contact with the insert sleeve.

[0008] Preferably, the inner wall of the shielding sleeve and the inner wall of the right end of the outer coaxial pin assembly are in close contact with the first insulator.

[0009] Preferably, the shell is in close contact with the second insulator.

[0010] Preferably, the left end of the RF connector body is mounted and placed on the internal through hole of the connecting plate, and the right end of the RF connector body is mounted and placed on the internal through hole of the pressure cover.

[0011] Preferably, the left end of the pin cylinder is mounted and placed in the internal through hole of the connecting plate, and the right end of the pin cylinder is mounted and placed in the internal through hole of the pressure cover.

[0012] Preferably, the right end of the first spiral wire and the right end of the second spiral wire are fixed by welding, the outside of the pin barrel is electrically connected to a connecting wire, and the other end of the connecting wire is fixed by welding to the welding point of the right end of the first spiral wire and the right end of the second spiral wire.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In the present invention, the outer side of the radio frequency cable is welded and fixed to the left end of the first spiral conductor, the outer side of the shielding sleeve is welded and fixed to the left end of the second spiral conductor, the outer side of the plug barrel is electrically connected to a connecting wire, and the other end of the connecting wire is welded and fixed to the welding points of the right ends of the first spiral conductor and the second spiral conductor. When the lightning protection radio frequency connector is connected to the external radio frequency plug, the inner coaxial pin assembly is connected to the electrical connection line of the external radio frequency plug line, and the plug barrel is connected to the ground line of the external radio frequency plug line. Through the above arrangement, the connector device has a good lightning protection effect on radio frequency signals while meeting the requirements of light weight and high electrical connection reliability;

[0015] 2. In the present invention, after the radio frequency cable is installed and placed, the insert is threadedly assembled with the outer coaxial pin assembly, a first insulator is placed inside the insert, and the inside of the insert is threadedly assembled with the shielding sleeve. The inner wall of the shielding sleeve and the inner wall of the right end of the outer coaxial pin assembly are in contact with the first insulator, the right end of the first spiral wire passes through the through hole of the shielding sleeve, a connecting piece is placed on the right side of the radio frequency cable, a connecting pin is placed on the right end of the connecting piece, a second insulator is installed on the outside of the connecting pin, and the outside of the shielding sleeve is threadedly assembled with the outer shell. Through the above arrangement, the connector device is convenient for regular disassembly, maintenance and repair of the connector device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure at point A;

[0018] Figure 3 For the present invention Figure 1 Schematic diagram of the cross section at MM;

[0019] Figure 4 This is a schematic diagram of the installation structure of the latch barrel of the present invention;

[0020] Figure 5 Schematic diagram of a half-section structure of the radio frequency connector body of the present invention;

[0021] Figure 6 For the present invention Figure 5 The right half of the enlarged structural diagram;

[0022] Figure 7 For the present invention Figure 5 The left half of the enlarged structural diagram;

[0023] Figure 8 This is a schematic diagram of the installation structure of the radio frequency cable and the first spiral conductor of the present invention;

[0024] Figure 9 Schematic diagram of the installation structure of the first spiral wire and the connecting wire of the present invention.

[0025] In the figure: 1. RF connector housing; 2. threaded housing; 3. connecting cylinder; 4. first rubber pad; 5. connecting plate; 6. RF connector body; 601. outer coaxial pin assembly; 602. barrier ring; 603. inner coaxial pin assembly; 604. RF cable; 605. second rubber pad; 606. insert cylinder; 607. first insulator; 608. shielding sleeve; 609. first spiral conductor; 610. second spiral conductor; 611. connecting piece; 612. insulating piece; 613. connecting pin; 614. second insulator; 615. housing; 7. pin cylinder; 8. gland; 9. spring washer; 10. cross-slot pan head screw; 11. connecting wire. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0027] In the embodiments of the invention, it should be noted that the directions or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", and "outside" are based on the positions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations of the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Similarly, similar words such as "one", "an", or "the" do not indicate a quantitative limitation, but rather indicate the presence of at least one. Similar words such as "include" or "comprises" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0028] Furthermore, in the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0029] See also Figure 1-9 , the present invention provides a technical solution:

[0030] A lightning-proof radio frequency electrical connector comprises a radio frequency connector housing 1, a threaded housing 2 and a connecting cylinder 3. The radio frequency connector housing 1 and the threaded housing 2 are threadedly assembled. The connecting cylinder 3 is fixedly arranged on the right end of the threaded housing 2. A first rubber pad 4 is fixedly arranged inside the threaded housing 2. A connecting plate 5 is fixedly arranged inside the radio frequency connector housing 1. A radio frequency connector body 6 and a pin cylinder 7 are installed inside the radio frequency connector housing 1, the threaded housing 2 and the connecting cylinder 3. A pressure cap 8 is provided on the right side of the connecting cylinder 3. A spring washer 9 is placed in the screw mounting groove on the right side of the pressure cap 8. A cross-slot pan head screw 10 is threadedly assembled inside the connecting cylinder 3 and the pressure cap 8. The radio frequency connector body 6 comprises an outer coaxial pin assembly 601, a barrier ring 602, an inner coaxial pin assembly 603, a radio frequency cable 604, a second rubber pad 605, a plug 606, a first insulator 607, a shielding sleeve 608, a first spiral conductor 609, a second spiral conductor 610, a connecting piece 611, an insulating piece 612, a connecting pin 613, and a second insulator 614. The outer shell 615 is provided with a barrier ring 602 fixedly arranged inside the outer coaxial pin assembly 601, an inner coaxial pin assembly 603 fixedly arranged inside the barrier ring 602, the right end of the inner coaxial pin assembly 603 is electrically connected to the RF cable 604, a second rubber pad 605 is fixedly arranged inside the outer coaxial pin assembly 601, the inner part of the outer coaxial pin assembly 601 is threadedly assembled with the insert 606, a first insulator 607 is placed inside the insert 606, and the inner part of the insert 606 is threadedly assembled with the shielding sleeve 608. The radio frequency cable 604 is configured such that the outer side is welded and fixed to the left end of the first spiral conductor 609, the outer side of the shielding sleeve 608 is welded and fixed to the left end of the second spiral conductor 610, a connecting piece 611 is electrically connected to the right side of the radio frequency cable 604, an insulating piece 612 is fixed to the left end of the connecting piece 611, a connecting pin 613 is electrically connected to the right end of the connecting piece 611, a second insulator 614 is installed on the outer side of the connecting pin 613, and a shell 615 is threadedly assembled on the outer side of the shielding sleeve 608.

[0031] The first rubber pad 4 is in contact with the RF connector housing 1 , and the second rubber pad 605 is in contact with the insert 606 . Through the above arrangement, the first rubber pad 4 and the second rubber pad 605 play a flexible buffering role in the combined installation.

[0032] The inner wall of the shielding sleeve 608 and the inner wall of the right end of the outer coaxial pin assembly 601 are in contact with the first insulator 607. Through the above arrangement, the first insulator 607 is installed.

[0033] The housing 615 is in contact with the second insulator 614 , and the second insulator 614 is installed through the above arrangement.

[0034] The left end of the RF connector body 6 is installed and placed with the internal through hole of the connecting plate 5, and the right end of the RF connector body 6 is installed and placed with the internal through hole of the pressure cover 8. Through the above settings, the RF connector body 6 is installed and set.

[0035] The left end of the latch tube 7 is installed and placed with the internal through hole of the connecting plate 5, and the right end of the latch tube 7 is installed and placed with the internal through hole of the pressure cover 8. Through the above settings, the latch tube 7 is installed and set.

[0036] The right end of the first spiral wire 609 and the right end of the second spiral wire 610 are fixed by welding, and the outside of the pin barrel 7 is electrically connected to the connecting wire 11. The other end of the connecting wire 11 is welded and fixed to the welding point of the right end of the first spiral wire 609 and the right end of the second spiral wire 610. Through the above arrangement, the first spiral wire 609, the second spiral wire 610, the connecting wire 11 and the pin barrel 7 form a grounding treatment for lightning protection.

[0037] Workflow: The invention provides a lightning-proof radio frequency electrical connector. The connector device has a good lightning protection effect on radio frequency signals while meeting the requirements of light weight and high electrical connection reliability, and is convenient for regular disassembly, maintenance and repair of the connector device.

[0038] like Figure 5-Figure 9As shown, the outer coaxial pin assembly 601, the barrier ring 602 and the inner coaxial pin assembly 603 together constitute an 8# dual coaxial pin assembly commonly used in the prior art. The outer side of the RF cable 604 is welded and fixed to the left end of the first spiral conductor 609. The RF cable 604 is placed in contact with the inner conductor of the 8# dual coaxial pin assembly. The insert 606 is threadedly assembled with the outer coaxial pin assembly 601 until the second rubber pad 605 is in contact with the insert 606. A first insulator 607 is placed inside the insert 606. The insert 606 is threadedly assembled with the shielding sleeve 608. The inner wall of the shielding sleeve 608 and the inner wall of the right end of the outer coaxial pin assembly 601 are in contact with the first insulator 607. The right end of a spiral conductor 609 passes through the through hole of the shielding sleeve 608, and the outer side of the shielding sleeve 608 is welded and fixed to the left end of the second spiral conductor 610. The right end of the first spiral conductor 609 and the right end of the second spiral conductor 610 are fixed by welding. A connecting piece 611 is placed on the right side of the RF cable 604, and a connecting pin 613 is placed on the right end of the connecting piece 611. A second insulator 614 is installed on the outside of the connecting pin 613. The outer side of the shielding sleeve 608 is threadedly assembled with the outer shell 615. After installation, the inner coaxial pin assembly 603, the RF cable 604, the connecting piece 611 and the connecting pin 613 are electrically connected components, completing the assembly combination of the RF connector body 6.

[0039] like Figure 1-Figure 4 As shown, the threaded shell 2 is threadedly assembled with the J599 type RF connector shell 1, the left end of the RF connector body 6 is installed and placed with the internal through hole of the connecting plate 5, the right end of the RF connector body 6 is installed and placed with the internal through hole of the pressure cover 8, the left end of the pin barrel 7 is installed and placed with the internal through hole of the connecting plate 5, and the right end of the pin barrel 7 is installed and placed with the internal through hole of the pressure cover 8. The outside of the pin barrel 7 is electrically connected to the connecting wire 11, and the other end of the connecting wire 11 is welded and fixed to the welding point of the right end of the first spiral wire 609 and the right end of the second spiral wire 610. Then, the pressure cover 8 is assembled to the connecting barrel 3 with a φ2.5 spring washer 9 and an M2.5×10 cross-slot pan head screw 10. In this way, a lightning protection RF connector is formed. When the lightning protection RF connector is connected to an external RF plug, the inner coaxial pin assembly 603 is connected to the electrical connection line of the external RF plug line, and the pin barrel 7 is connected to the ground wire of the external RF plug line.

[0040] While embodiments of the invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and alterations may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lightning protection radio frequency electrical connector, comprising a radio frequency connector housing (1), a threaded housing (2) and a connecting cylinder (3), characterized in that: The RF connector housing (1) and the threaded housing (2) are threadedly assembled, a connecting cylinder (3) is fixedly arranged on the right end of the threaded housing (2), a first rubber pad (4) is fixedly arranged inside the threaded housing (2), a connecting plate (5) is fixedly arranged inside the RF connector housing (1), an RF connector body (6) and a pin cylinder (7) are installed inside the RF connector housing (1), the threaded housing (2) and the connecting cylinder (3), a pressure cover (8) is arranged on the right side of the connecting cylinder (3), a spring washer (9) is placed in the screw installation groove on the right side of the pressure cover (8), and the connecting cylinder (3) is fixedly arranged on the right end of the threaded housing (2), a connecting plate (5) is fixedly arranged inside the RF connector housing (1), a RF connector body (6) and a pin cylinder (7) are installed inside the RF connector housing (1), the threaded housing (2) and the connecting cylinder (3), a pressure cover (8) is arranged on the right side of the connecting cylinder (3), a spring washer (9) is placed in the screw installation groove on the right side of the pressure cover (8), and the connecting cylinder (3) is fixedly arranged on the right end of the threaded housing (2). The inner thread of the gland (8) is equipped with a cross-slot pan head screw (10), and the RF connector body (6) includes an outer coaxial pin assembly (601), a barrier ring (602), an inner coaxial pin assembly (603), a RF cable (604), a second rubber pad (605), an insert (606), a first insulator (607), a shielding sleeve (608), a first spiral wire (609), a second spiral wire (610), a connecting piece (611), an insulating piece (612), a connecting pin (613), a second insulator (614) and a shell (615), and the outer coaxial pin assembly (601) is provided with a cross-slot pan head screw (10), and the RF connector body (6) includes an outer coaxial pin assembly (601), a barrier ring (602), an inner coaxial pin assembly (603), a RF cable (604), a second rubber pad (605), an insert (606), a first insulator (607), a shielding sleeve (608), a first spiral wire (609), a second spiral wire (610), a connecting piece (611), an insulating piece (612), a connecting pin (613), a second insulator (614) and a shell (615). A blocking ring (602) is fixedly provided inside the pin assembly (601), an inner coaxial pin assembly (603) is fixedly provided inside the blocking ring (602), the right end of the inner coaxial pin assembly (603) is electrically connected to the radio frequency cable (604), a second rubber pad (605) is fixedly provided inside the outer coaxial pin assembly (601), the inner part of the outer coaxial pin assembly (601) is threadedly assembled with the insert (606), a first insulator (607) is placed inside the insert (606), the inner part of the insert (606) is threadedly assembled with the shielding sleeve (608), and the radio frequency cable (604) is electrically connected to the right end of the inner coaxial pin assembly (603), and a second rubber pad (605) is fixedly provided inside the outer coaxial pin assembly (601). The outer side of the radio frequency cable (604) is welded and fixed to the left end of the first spiral conductor (609), the outer side of the shielding sleeve (608) is welded and fixed to the left end of the second spiral conductor (610), the right side of the radio frequency cable (604) is electrically connected with a connecting piece (611), the left end of the connecting piece (611) is fixed with an insulating piece (612), the right end of the connecting piece (611) is electrically connected with a connecting pin (613), the outer side of the connecting pin (613) is installed with a second insulator (614), and the outer side of the shielding sleeve (608) is threadedly assembled with a shell (615).

2. The lightning protection radio frequency electrical connector according to claim 1, characterized in that: The first rubber pad (4) is in close contact with the radio frequency connector housing (1), and the second rubber pad (605) is in close contact with the insert sleeve (606).

3. The lightning protection radio frequency electrical connector according to claim 1, characterized in that: The inner wall of the shielding sleeve (608) and the inner wall of the right end of the outer coaxial pin assembly (601) are in close contact with the first insulator (607).

4. The lightning protection radio frequency electrical connector according to claim 1, characterized in that: The housing (615) is in close contact with the second insulator (614).

5. The lightning protection radio frequency electrical connector according to claim 1, characterized in that: The left end of the RF connector body (6) is mounted and placed in the internal through hole of the connecting plate (5), and the right end of the RF connector body (6) is mounted and placed in the internal through hole of the pressure cover (8).

6. The lightning protection radio frequency electrical connector according to claim 1, characterized in that: The left end of the latch barrel (7) is mounted and placed in the internal through hole of the connecting plate (5), and the right end of the latch barrel (7) is mounted and placed in the internal through hole of the pressure cover (8).

7. The lightning protection radio frequency electrical connector according to claim 1, characterized in that: The right end of the first spiral wire (609) and the right end of the second spiral wire (610) are fixed by welding, and the outside of the pin barrel (7) is electrically connected to a connecting wire (11), and the other end of the connecting wire (11) is fixed by welding to the welding point of the right end of the first spiral wire (609) and the right end of the second spiral wire (610).

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