CN217507827U

CN217507827U - Wire-to-board RF connector

Info

Publication number: CN217507827U
Application number: CN202221406359.5U
Authority: CN
Inventors: 禹足之
Original assignee: Nantong Mengcheng Electronics Co ltd
Current assignee: Nantong Mengcheng Electronics Co ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-09-27
Anticipated expiration: 2032-06-07

Abstract

The utility model provides a wire-to-board RF connector, which comprises a metal elastic sheet, an insulator, a shell and a PCB; the cable is inserted into the wire hole and is clamped by the two metal elastic sheets; the pin section of the metal elastic sheet extends out of the insulator and is welded on the PCB; the shell is coated outside the insulator and welded on the PCB; the two metal elastic sheets are respectively a movable elastic sheet and a static elastic sheet, a first clamping portion bent towards one side of the static elastic sheet is arranged at the front end of the movable elastic sheet in a hanging mode, the first clamping portion is continuously bent towards one side of the static elastic sheet to form a second clamping portion, the second clamping portion is perpendicular to the first clamping portion, and the first clamping portion, the second clamping portion, the static elastic sheet and the wire hole are matched to clamp the cable. The utility model provides a clamp force between wire pair board connector's contact and the cable insecure and easy wearing and tearing problem.

Description

Wire-to-board RF connector

Technical Field

The utility model belongs to the technical field of the connector, concretely relates to line is to board RF connector.

Background

The connector is an indispensable part of the electronic device, and functions to conduct a circuit that is blocked. The basic components of the pair-board RF connector comprise a PCB, a contact, an insulator, a shell and other accessories, wherein the contact is a core part for completing the electrical connection of the connector, and generally, a contact pair is formed by two metal elastic sheets to complete the electrical connection of a cable. The main function of the insulator is to ensure electrical insulation between the connectors and to fix the contacts, and the shell plays a role in fixing the PCB board and grounding.

The clamping force between the contact element of the wire-to-board connector and the cable cannot be too loose, otherwise, the problems of loss of elasticity, poor contact and the like of the contact element structure can occur; and the cable cannot be too tight, otherwise, the contact piece and the cable are worn and the service life of parts is shortened due to frequent plugging and unplugging of the cable.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a line is to board RF connector to solve the insecure and easy wearing and tearing problem of clamp force between contact and the cable of line to board connector.

A wire pair RF connector comprises a metal spring, an insulator, a shell and a PCB;

the cable comprises an insulator, a cable hole, a spring plate groove, a cable wire and a cable wire, wherein the cable hole and the spring plate groove are communicated with each other; the pin section of the metal elastic sheet extends out of the insulator and is welded on the PCB;

the shell is coated outside the insulator and welded on the PCB;

the two metal elastic sheets are respectively a movable elastic sheet and a static elastic sheet, the static elastic sheet is a planar metal plate, a first clamping portion bent towards one side of the static elastic sheet is arranged at the front end of the movable elastic sheet in a hanging mode, the first clamping portion is continuously bent towards one side of the static elastic sheet to form a second clamping portion, the second clamping portion is perpendicular to the first clamping portion, and the first clamping portion, the second clamping portion and the static elastic sheet are matched to clamp a cable.

Preferably, a suspended third clamping portion is arranged at the front end of the static elastic sheet, the third clamping portion is located on the side opposite to the first clamping portion, and the third clamping portion and the first clamping portion are partially staggered in height.

Preferably, the cross section of the hole top of the wire hole is arc-shaped and matched with a cable, and the cable is tightly attached to the hole top after being clamped by a metal elastic sheet.

Preferably, the metal elastic sheet is provided with a ridge protrusion for positioning the insulator, and the ridge protrusion is clamped in the insulator.

Preferably, the elastic sheet groove extends forwards from the rear end of the insulator, the metal elastic sheet is provided with an embedding section, the embedding section is embedded into the elastic sheet groove, and the front end of the embedding section is abutted to the elastic sheet groove.

Preferably, the scarf joint section of the movable elastic sheet is connected with the first clamping portion through an auxiliary clamping section, the auxiliary clamping section extends towards one side of the static elastic sheet, and the auxiliary clamping section is also suspended in the wire hole.

Preferably, the auxiliary clamping section is provided with a rib which compresses the cable.

Furthermore, the PCB is provided with a welding hole, the bottom of the shell is provided with a welding leg, and the welding leg is inserted into the welding hole and is welded and fixed with the PCB.

The utility model has the advantages that:

the utility model discloses a scarf joint in the shell fragment inslot at two metal shrapnel intervals, the cable inserts the downthehole and presss from both sides tightly by two metal shrapnel, wherein move the first clamping part that the shell fragment front end hung and be equipped with to quiet shell fragment one side buckling, continue to become the second clamping part to quiet shell fragment one side buckling by first clamping part, the first clamping part of second clamping part perpendicular to, because first clamping part and second clamping part all have elastic deformation volume, therefore, first clamping part, the second clamping part respectively with the top cooperation in quiet shell fragment and line hole, from left right direction and upper and lower direction clamp cable simultaneously, the clamp force is more even reliable. Because the pressure that the cable applyed to the metal shrapnel is more dispersed during the plug, consequently the metal shrapnel is also difficult wearing and tearing, has prolonged life.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic cross-sectional view of portion A-A of FIG. 2;

FIG. 4 is a schematic cross-sectional view of portion B-B of FIG. 2;

FIG. 5 is a schematic structural diagram of a metal dome;

fig. 6 is a schematic structural view of the housing.

Labeled as: 1. a movable spring plate; 11. a scarf joint section; 12. a lead section; 13. a first clamping portion; 14. a second clamping portion; 15. an auxiliary clamping section; 16. a rib; 17. the ridge is convex; 2. a static spring plate; 21. a third clamping portion; 3. an insulator; 31. a wire hole; 32. a spring sheet groove; 33. a hole top; 4. a housing; 41. a front section; 42. a rear section; 43. a positioning end; 44. welding feet; 5. a PCB board; 51. and (6) welding the holes.

Detailed Description

As shown in fig. 1 to 6, a wire-to-board RF connector includes a metal dome, an insulator 3, a housing 4, and a PCB board 5.

Referring to fig. 1, a wire hole 31 and a spring plate groove 32 are formed in the insulator 3 and are communicated with each other, the insulator 3 is an injection molded part, and the wire hole 31 penetrates through the insulator 3 from front to back. The shell 4 is coated outside the insulator 3 and welded on the PCB 5, so that the metal elastic sheet is fixed on the PCB 5, and the shell 4 also plays a role of grounding.

Referring to fig. 5, two metal elastic pieces are embedded in the elastic piece groove 32 at intervals, the metal elastic pieces are vertically installed, and the end of the cable is inserted into the wire hole 31 and clamped by the two metal elastic pieces.

The spring piece groove 32 extends forward from the rear end of the insulator 3. The metal spring plate comprises an embedding section 11 and a pin section 12, wherein the embedding section 11 is inserted into the spring plate groove 32, and the front end of the embedding section abuts against the spring plate groove 32. The pin section 12 of the metal dome extends out of the insulator 3 and is soldered to the PCB 5.

Referring to fig. 3, 4 and 5, the two metal elastic sheets are respectively a movable elastic sheet 1 and a static elastic sheet 2, the whole static elastic sheet 2 is a planar metal plate, and a suspended third clamping portion 21 is arranged at the front end of the static elastic sheet 2; the front end of the movable elastic sheet 1 is provided with a first clamping part 13 which is bent towards one side of the static elastic sheet 2 in a hanging mode, the first clamping part 13 is bent towards one side of the static elastic sheet 2 continuously to form a second clamping part 14, the second clamping part 14 is perpendicular to the first clamping part 13, the second clamping part 14, the third clamping part 21 and the top of the wire hole 31 are enclosed to form a cavity capable of clamping a cable, and the first clamping part 13 and the second clamping part 14 have elastic clamping functions, so that the cable is flexibly clamped from the left direction, the right direction, the upper direction and the lower direction, and the clamping force is more uniform and reliable.

Referring to fig. 4, the cross section of the hole top 33 of the wire hole 31 is an arc shape adapted to the cable, and the cable is tightly attached to the hole top 33 after being clamped by the metal elastic sheet, so that the cable is rigidly pressed by the hole top 33.

The third clamping portion 21 is located on the side opposite to the first clamping portion 13, and the third clamping portion 21 is slightly offset in height from the first clamping portion 13 locally.

Referring to fig. 3 and 5, the embedding section 11 of the movable spring plate 1 is connected to the first clamping portion 13 by the auxiliary clamping section 15, the auxiliary clamping section 15 is suspended in the wire hole 31, and the auxiliary clamping section 15 is bent toward one side of the stationary spring plate 2 in an inclined manner, so as to provide deformation elasticity to the cable for the first clamping portion 13 and the second clamping portion 14 as a whole, so that the first clamping portion 13 and the second clamping portion 14 keep clamping the cable, and play an auxiliary clamping role in inserting and pulling the cable.

The auxiliary clamping section 15 is provided with a rib 16, and the rib 16 can press the moving cable to insert the cable into the wire hole 31 along the rib 16.

The spring plate grooves 32 are formed above and below the wire hole 31, so that the top and the lower side of the metal spring plate can be fixed, respectively. The top of the embedding section 11 of the metal elastic sheet is provided with a ridge projection 17 used for positioning the insulator 3, and the ridge projection 17 is clamped in the elastic sheet groove 32 above the wire hole. The metal elastic sheet and the insulator 3 are molded into a whole by adopting an in-mold injection molding process, so that the connection cannot be loosened, and the assembly difficulty of the metal elastic sheet is also reduced.

Referring to fig. 2 and 6, the housing 4 includes a front section 41 and a rear section 42, a connecting portion between the front section 41 and the rear section 42 has an annular positioning end 43, and the positioning end 43 abuts against one end surface of the insulator 3 from the front to position the insulator 3 assembled to the housing 4.

Referring to fig. 6, a welding hole 51 is formed on the PCB 5, a solder tail 44 is formed at the bottom of the housing 4, and the solder tail 44 is inserted into the welding hole 51 and is welded to the PCB 5.

The assembly method of the utility model is that the processed movable elastic sheet 1 and the processed static elastic sheet 2 are put into a forming mould, and the insulator 3 and the two metal elastic sheets are molded into a whole by injection; the insulator 3 is mounted in the housing 4 with a tight fit, the insulator 3 is positioned by the positioning end 43 of the housing 4, then the solder tails 44 of the housing 4 are inserted into the PCB 5, and the lead sections 12 of the metal dome and the solder tails 44 of the housing 4 are soldered to the PCB 5.

When the cable clamping device is used, a cable is inserted from the rear end of the wire hole 31, the cable is moved forwards under the guidance of the auxiliary clamping section 15, the cable is clamped by the first clamping part 13, the second clamping part 14, the third clamping part 21 and the hole top 33 together, the clamping force is uniform and reliable, and the abrasion problem of the elastic sheet and the cable is improved due to the fact that the direction of the force is dispersed.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wire pair RF connector comprises a metal spring, an insulator, a shell and a PCB; the method is characterized in that:

the shell is coated outside the insulator and welded on the PCB;

the two metal elastic sheets are respectively a movable elastic sheet and a static elastic sheet, a first clamping portion bent towards one side of the static elastic sheet is arranged at the front end of the movable elastic sheet in a hanging mode, the first clamping portion is continuously bent towards one side of the static elastic sheet to form a second clamping portion, the second clamping portion is perpendicular to the first clamping portion, and the first clamping portion, the second clamping portion, the static elastic sheet and the wire hole are matched to clamp a cable.

2. The wire-to-board RF connector according to claim 1, wherein a front end of the stationary spring plate is provided with a suspended third clamping portion, the third clamping portion is located on a side opposite to the first clamping portion, and the third clamping portion is partially staggered in height from the first clamping portion.

3. The pair plate RF connector of claim 1, wherein the cross-section of the top of the wire hole is curved to fit a cable, the cable being clamped by a metal spring and then abutting against the top of the hole.

4. The wire-to-board RF connector of claim 1, wherein the metal spring has a ridge for positioning the insulator, the ridge snapping into the insulator.

5. The wire-to-board RF connector according to claim 1, wherein the spring slot extends forward from a rear end of the insulator, the metal spring is provided with an engagement section that is embedded in the spring slot, and a front end of the engagement section abuts the spring slot.

6. The wire-to-board RF connector according to claim 5, wherein the engagement section of the movable spring piece is connected to the first clamping portion by an auxiliary clamping section, the auxiliary clamping section is bent toward one side of the stationary spring piece, and the auxiliary clamping section is also suspended in the wire hole.

7. The wire pair board RF connector of claim 6, wherein the auxiliary clamping section has a rib thereon, the rib compressing the cable.

8. The wire-to-board RF connector according to any one of claims 1 to 7, wherein the PCB is provided with a solder hole, and the bottom of the housing is provided with a solder fillet inserted into the solder hole and soldered to the PCB.