RF connectors

Abstract

The present invention discloses a radio frequency connector, comprising an insulator and a movable terminal integrally formed with the insulator and a static terminal normally maintaining contact with the movable terminal, the static terminal comprising a first fixing portion integrally formed with the insulator, a first welding portion extending outward from the lower end of the first fixing portion, and a first contact portion extending inward from the upper end of the first fixing portion, the movable terminal comprising a second fixing portion integrally formed with the insulator, a second welding portion extending outward from the lower end of the second fixing portion, and a second contact portion extending inward from the upper end of the second fixing portion, the second contact portion being located at the lower end of the first contact portion and normally maintaining contact with the first contact portion, the insulator being provided with a docking hole exposing the second contact portion therein, and the second fixing portion being provided with a second retaining arm integrally formed in the insulator and arranged non-horizontally and non-vertically between the second fixing portion.

Description

Technical field

[0001] The present invention relates to a radio frequency connector, and in particular to a radio frequency connector with a movable terminal having a second retaining arm for increasing the gripping force. [Background Technology]

[0002] For related prior art, please refer to Chinese invention patent application CN105826768A, which discloses a radio frequency connector comprising an insulating base, a static terminal and a dynamic terminal secured to the insulating base, an insulating cover snapped onto the insulating base, and a metal housing covering the insulating base and cover. The dynamic terminal and the static terminal each have a contact portion, a fixed portion formed by bending downward at one end of the contact portion and embedded in the insulating base, and a welding portion extending horizontally downward and outward from the distal end of the fixed portion.

[0003] Because traditional insert-type overmolding processes use arc-shaped or dimple-cut terminals to increase grip with the plastic, the increasing demand for miniaturization of RF connectors has led to a greater need to miniaturize movable terminals, reduce the size of the elastic movable portion, and reduce its thickness. When the grip is low and the product is small, there is no extra space to create many special shapes.

[0004] Therefore, it is necessary to provide a new radio frequency connector to overcome the above-mentioned defects. [Summary of the invention]

[0005] The object of the present invention is to provide a radio frequency connector, in which the fixing parts of the movable terminal and the static terminal have a first retaining arm and a second retaining arm arranged obliquely, thereby increasing the gripping force of the first retaining arm and the second retaining arm with the insulating seat body, and increasing the retaining force of the static terminal, the movable terminal and the insulating seat body.

[0006] To achieve the above-mentioned objectives, the present invention discloses a radio frequency connector, comprising an insulator and a movable terminal integrally formed with the insulator and a static terminal normally maintaining contact with the movable terminal, the static terminal comprising a first fixing portion integrally formed with the insulator, a first welding portion extending outward from the lower end of the first fixing portion, and a first contact portion extending inward from the upper end of the first fixing portion, the movable terminal comprising a second fixing portion integrally formed with the insulator, a second welding portion extending outward from the lower end of the second fixing portion, and a second contact portion extending inward from the upper end of the second fixing portion, the second contact portion being located at the lower end of the first contact portion and normally maintaining contact with the first contact portion, the insulator being provided with a docking hole exposing the second contact portion therein, and the second fixing portion being provided with a second retaining arm integrally formed in the insulator and arranged non-horizontally and non-vertically between the second fixing portion.

[0007] Furthermore, the second holding arm is arranged vertically.

[0008] Furthermore, the second holding arm is tilted toward the static terminal, and an included angle between the second holding arm and the second fixing portion is 45 degrees.

[0009] Furthermore, the first fixing portion is provided with a first holding arm integrally formed in the insulator and arranged non-horizontally and non-vertically between the first fixing portion.

[0010] Furthermore, the insulator includes an insulating base body arranged in a flat plate and an insulating cover body located above the insulating base body and having the docking hole, and the movable terminal and the static terminal are integrally formed on the insulating base body.

[0011] Furthermore, the insulating base is provided with through holes located at the periphery of the static terminal and the movable terminal, and the insulating cover is provided with clamping columns fixed in the through holes.

[0012] Furthermore, the first holding arm and the second holding arm are arranged opposite to each other.

[0013] Furthermore, the vertical width of the free end of the first holding arm is greater than the width of the root of the first holding arm, and the vertical width of the free end of the second holding arm is greater than the width of the root of the second holding arm.

[0014] Furthermore, a distance between the bases of the pair of first holding arms is smaller than a distance between the free ends of the pair of first holding arms.

[0015] Furthermore, the movable terminal further has extension arms extending to both sides, and the free ends of the extension arms are tilted upward and abut against the insulating base to provide a positive force.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the fixing parts on the movable terminal and the static terminal of the RF connector of the present invention are provided with wing-shaped retaining arms, which increase the gripping force of the first retaining arm and the second retaining arm with the insulating seat, and increase the retaining force of the static terminal, the movable terminal and the insulating seat.

Brief Description of the Drawings

[0017] Figure 1 It is a three-dimensional assembly diagram of the radio frequency connector of the present invention.

[0018] Figure 2 yes Figure 1 A three-dimensional composite image viewed from another direction.

[0019] Figure 3 It is a partial exploded perspective view of the radio frequency connector of the present invention.

[0020] Figure 4 yes Figure 3 Further exploded perspective view.

[0021] Figure 5 yes Figure 4 Schematic diagram viewed from another direction.

[0022] Figure 6 yes Figure 1 Sectional view along line AA.

[0023]

Main component symbol description

[0024] RF connector 100 insulation seat 1

[0025] First terminal groove 11 Second terminal groove 12

[0026] Holding groove 13 Holding groove 14

[0027] Through hole 15 Buckling groove 16

[0028] Insulation cover 2 Base 21

[0029] Docking portion 22 Docking hole 221

[0030] Bottom plate 23 through hole 231

[0031] Clamping block 24 and supporting block 241

[0032] Snap-on column 25 Static terminal 3

[0033] First contact portion 31 First fixing portion 32

[0034] First holding arm 321 First welding portion 33

[0035] Movable terminal 4 second contact portion 41

[0036] Second fixing portion 42 Second holding arm 421

[0037] Second welding portion 43 Extension arm 44

[0038] Pressing portion 45 Metal housing 5

[0039] socket portion 50 substrate 51

[0040] Holding notch 511 Perforated portion 512

[0041] Locking portion 52 Connecting foot 53

[0042] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. [Specific implementation method]

[0043] Below is the attached figure Figures 1 to 6 The specific embodiment of the radio frequency connector 100 of the present invention is described in detail. For the convenience of description, the following descriptions involving up, down, left, right, etc. are all based on Figure 1 For reference.

[0044] See Figures 1 to 6 As shown, the RF connector 100 of the present invention is used to cooperate with a test probe, which includes an insulator, a movable terminal 4 integrally formed on the insulator, a static terminal 3 that maintains contact with the movable terminal 4 under normal conditions, and a metal shell 5 covering the insulator.

[0045] The insulator includes a flat-plate-shaped insulating base 1 and an insulating cover 2 located on the insulating base 1. In this embodiment, the insulating cover 2 is snap-connected to the insulating base 1.

[0046] See Figures 3 to 6 As shown, the insulating base 1 is made of plastic and includes a first terminal slot 11 for accommodating the static terminal 3, a second terminal slot 12 for accommodating the dynamic terminal 4, a retaining slot 13 extending transversely between the first and second terminal slots 11, 12, a longitudinally extending abutting slot 14 perpendicular to the retaining slot 13, through-holes 15 extending through the upper and lower surfaces of the insulating base 1 and surrounding the retaining and abutting slots 13, 14, and retaining grooves 16 on the bottom surface of the insulating base 1, located on either side of the retaining slot 13. The first and second terminal slots 11, 12 extend from top to bottom through the upper and lower surfaces of the insulating base 1. The retaining slot 131 slopes downward from the second terminal slot 12 to the first terminal slot 11. The retaining slot 131 is located in the center of the insulating base 1. The retaining slot 14 slopes downward from the longitudinal sides of the insulating base 1 toward the center. The through hole 15 is located in a stepped portion formed by a downward depression on the upper surface of the insulating base 1 .

[0047] See also Figures 3 to 6 As shown, the insulating cover 2 is mounted on the insulating base 1 and includes a base 21, a cylindrical docking portion 22 formed by a protrusion in the middle of the base 21, a bottom plate 23 fixed to the bottom of the base 21, a snap-fit ​​block 24 protruding upward and outward from the side of the bottom plate 23 corresponding to the static terminal 3, and four snap-fit ​​posts 25 protruding downward from the bottom plate 23. A docking hole 221 is formed through the middle of the docking portion 22. The docking hole 221 can be inserted into a test probe. The bottom plate 23 is provided with a through-hole 231 extending through the docking hole 221. The lower surface of the snap-fit ​​block 24 protrudes downward to form a supporting block 241 that abuts against the static terminal 3. The upper surface of the snap-fit ​​block 24 protrudes upward from the upper surface of the base 21. The snap-fit ​​posts 25 are inserted into the through-hole 15 of the insulating base 1.

[0048] The static terminal 3 is stamped from sheet metal. It has a stepped shape and includes a first fixing portion 32 integrally formed with the insulating base 1, a first welding portion 33 extending outward from the lower end of the first fixing portion 32, and a first contact portion 31 extending inward from the upper end of the first fixing portion 32. The first fixing portion 32 is formed by bending the lower end of the first contact portion 31 downward and is embedded in the first terminal slot 13 of the insulating base 1. After the static terminal 3 is formed in the insulating base 1, the first contact portion 31 is bent again to ensure precise contact between the first contact portion 31 and the movable terminal 4. The first fixing portion 32 is provided with a first retaining arm 321 integrally formed within the insulating base 1 and disposed non-horizontally and non-vertically between the first fixing portion 32. The first retaining arm 321 is wing-shaped. In this embodiment, the first retaining arm 321 extends obliquely toward the movable terminal 4. The first retaining arm 321 is disposed vertically. The first welding portion 33 extends out of the insulating seat 1 for welding and fixing with the docking circuit board (not shown). The non-horizontal setting mentioned above means that the first holding arm 321 and the first fixing portion 32 are not on the same horizontal plane. The non-vertical setting mentioned above means that the angle between the surface where the first fixing portion 32 is located and the surface where the first holding arm 321 is located is not 90 degrees. In this embodiment, the angle between the plane where the first holding arm 321 is located and the plane where the first fixing portion 32 is located is 45 degrees. The vertical width of the free end of the first holding arm 321 is greater than the width of the root of the first holding arm 321. The distance between the roots of a pair of first holding arms 321 is less than the distance between the free ends of a pair of first holding arms 321. When the movable terminal 4 is subjected to external force from top to bottom, the static terminal 3 also bears vertical force from top to bottom. At this time, the first retaining arm 321 is tilted, which can disperse the vertical force into the insulating seat 1, reducing the risk of the first retaining arm 321 breaking due to excessive force.

[0049] The movable terminal 4 includes a second contact portion 41 that abuts the first contact portion 31; a second fixing portion 42 connected to the second contact portion 41 and housed within the second terminal slot 12 of the insulating base 1 after installation; a pair of second retaining arms 421 extending obliquely from the longitudinal sides of the second fixing portion 42 from the outside to the inside to secure the movable terminal 1; a second soldering portion 43 extending horizontally and downwardly from the other end of the second fixing portion 42; an extension arm 44 extending perpendicularly to the direction of the second fixing portion 42 and positioned within the abutting slot 14; and a pressing portion 45 located at the junction of the extension arm 44 and the second fixing portion 42 for contact with a test probe. The second fixing portion 42 of the movable terminal 4 is integrally formed with the insulating base 1. The second soldering portion 43 extends outward from the lower end of the second fixing portion 42. The second contact portion 41 extends inward from the upper end of the second fixing portion 42 and maintains contact with the first contact portion 31 under normal conditions. The second contact portion 41 is exposed within the mating hole 221 of the insulating base. The movable terminal 4 has an overall cantilever beam structure, with the extension arms 44 extending from either side forming a simply supported beam structure. The free ends of the pair of extension arms 44 abut against the insulating base 1. The free ends of the extension arms 44 abut against the insulating base 1 at an upward angle to provide a positive force. The movable terminal 4 is formed by bending and stamping a resilient nickel-copper alloy plate into a specified shape. The second welding portion 43 extends outside the insulating base 1 for welding and securing to a mating circuit board (not shown). The second retaining arm 421 is integrally formed within the insulating body and is non-horizontally and non-perpendicularly positioned relative to the second fixing portion. The non-horizontal arrangement mentioned above means that the second retaining arm 421 and the second fixing portion 43 are not on the same horizontal plane. The non-perpendicular arrangement mentioned above means that the angle between the plane of the second fixing portion 42 and the plane of the second retaining arm 421 is not 90 degrees. In this embodiment, the angle between the plane of the second retaining arm 421 and the plane of the second fixing portion 42 is 45 degrees. The second holding arms 421 are vertically arranged. The vertical width of the free ends of the second holding arms 421 is greater than the width of the bases of the second holding arms 421. The distance between the bases of a pair of second holding arms 421 is less than the distance between the free ends of the pair of second holding arms 421.

[0050] The static terminal 3 and the movable terminal 4 are integrally formed on the insulating base 1 .

[0051] The metal shell 5 is made of metal material and includes a base plate 51, a sleeve portion 50 extending upward from the middle of the base plate 51, and a locking portion 52 located on both longitudinal sides of the metal shell 5 and extending inward after being bent downward from the base plate 51. The metal shell 5 is provided with a retaining notch 511 that interlocks with the locking block 24. The surface of the base plate 51 and the surface of the locking block 24 are located in the same plane. The locking portion 52 is vertically provided with a perforated portion 512 that passes through the front and rear surfaces of the locking portion 52, and connecting feet 53 located on both sides of the perforated portion 512 that connect the base plate 51 and the lower end of the locking portion 52. The bottom surface of the locking portion 52 is locked in the retaining guide groove 16.

[0052] The movable terminal 4 of the RF connector 100 of the present invention is equipped with a wing-shaped extension arm 44, which provides a reliable positive force, thereby ensuring that the pressing portion 45 has a strong elastic force. The first fixing portion 32 and the second fixing portion 42 on the movable terminal 4 and the static terminal 3 of the RF connector 100 of the present invention are equipped with a wing-shaped first retaining arm 321 and a second retaining arm 421 arranged at an angle. This increases the grip of the first retaining arm 321 and the second retaining arm 421 with the insulating base 1, thereby increasing the retention force between the static terminal 3 and the movable terminal 4 and the insulating base. When the test probe is inserted from top to bottom through the docking hole 221, it abuts the second contact portion 41. This forces the second contact portion 41 downward, separating it from the first contact portion 31. This forces the movable terminal 4 to withstand a vertical force. However, because the second retaining arm 421 is tilted from the second retaining portion 42 toward the static terminal 3, the force borne by the second retaining arm 421 is dispersed across the insulating base 1, reducing the risk of the second retaining arm 421 breaking due to excessive force. Furthermore, this arrangement of the second retaining arm 421 further strengthens the connection between the movable terminal and the insulating base 1. The same applies to the first retaining arm 321. In this embodiment, because the test probe directly applies force to the movable terminal 4, and the second contact portion 41 of the movable terminal 4 is located below the first contact portion 31 of the static terminal 3, only the second retaining arm 421 can be provided on the movable terminal 4, without the first retaining arm 321. Alternatively, both retaining arms 321 and the second retaining arm 421 can be provided.

[0053] The above descriptions are only several embodiments of the present invention, not all embodiments. Any equivalent changes made to the technical solution of the present invention by ordinary technicians in this field after reading the specification of the present invention are covered by the claims of the present invention.

Claims

1. A radio frequency connector, comprising an insulator and a movable terminal integrally formed with the insulator and a static terminal normally in contact with the movable terminal, the static terminal comprising a first fixing portion integrally formed with the insulator, a first welding portion extending outward from the lower end of the first fixing portion, and a first contact portion extending inward from the upper end of the first fixing portion; the movable terminal comprising a second fixing portion integrally formed with the insulator, a second welding portion extending outward from the lower end of the second fixing portion, and a second contact portion extending inward from the upper end of the second fixing portion, the second contact portion being located at the lower end of the first contact portion and normally in contact with the first contact portion, the insulator being provided with a docking hole for exposing the second contact portion therein, characterized in that: The second fixing portion is provided with a second holding arm integrally formed in the insulator and arranged non-horizontally and non-vertically between the second fixing portion. The second holding arm is arranged vertically and tilted toward the static terminal.

2. The radio frequency connector according to claim 1, wherein: An included angle between the second holding arm and the second fixing portion is 45 degrees.

3. The radio frequency connector according to claim 2, wherein: The first fixing portion is provided with a first holding arm integrally formed in the insulator and arranged non-horizontally and non-vertically between the first fixing portion.

4. The radio frequency connector according to claim 1, wherein: The insulator includes an insulating base body arranged in a flat plate and an insulating cover body located above the insulating base body and having the docking hole. The movable terminal and the static terminal are integrally formed on the insulating base body.

5. The radio frequency connector according to claim 4, wherein: The insulating base is provided with through holes located at the peripheries of the static terminal and the movable terminal, and the insulating cover is provided with clamping columns fixed in the through holes.

6. The radio frequency connector according to claim 3, wherein: The first holding arm and the second holding arm are arranged opposite to each other.

7. The radio frequency connector according to claim 6, wherein: The vertical width of the free end of the first holding arm is greater than the width of the root of the first holding arm, and the vertical width of the free end of the second holding arm is greater than the width of the root of the second holding arm.

8. The radio frequency connector according to claim 7, wherein: The distance between the bases of the pair of first holding arms is smaller than the distance between the free ends of the pair of first holding arms.

9. The radio frequency connector according to claim 4, wherein: The movable terminal further has extension arms extending to both sides, and the free ends of the extension arms are tilted upward and abut against the insulating base to provide a positive force.

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