CN216120893U - RCA socket - Google Patents

Abstract

The utility model discloses an RCA socket with more thorough electrostatic discharge. The technical scheme adopted comprises the following steps: the RCA socket comprises a base, a socket metal shell arranged at the upper end of the base and a signal terminal arranged in the base, wherein a grounding terminal is arranged in the base and provided with an elastic contact arm, an insulating block is arranged at the upper end of the elastic contact arm, when the RCA socket is plugged with the plug, a pin terminal of the plug presses the insulating block to enable the elastic contact arm to be in contact with the socket metal shell, and the elastic contact arm is in contact with the socket metal shell before the pin terminal is in contact with the signal terminal.

Description

RCA socket

Technical Field

The present invention relates to an RCA socket.

Background

The RCA terminal (RCA jack, or RCA connector) is commonly called a mezzanine head or a lotus head, and is a widely used terminal, and applicable occasions include analog video/audio (for example, AV terminal (three-color line)), digital audio (for example, S/PDIF), and transmission of color difference components (for example, color difference terminal). The input/output connection of the existing audio-video product generally adopts an RCA (audio-video socket) terminal as a socket, and in the using process, if the connection equipment needs to be converted, the AV (audio-video connection) line needs to be hot-plugged in most cases. Because of the existence of induced static electricity when the machine works or the existence of static electricity charged by human body, the static electricity can discharge to the contacted inner core of the connected machine through the AV connecting line at the moment of plugging the AV line, so that the output/input circuit of the audio-visual equipment is threatened, and the audio-visual equipment is possibly damaged.

In view of the above problems, as shown in the chinese utility model patent having the patent number "200810067507.3" and the name "RCA socket", the RCA socket includes a socket metal shell and an internal metal buckle, and when the RCA socket is mated with the AV connection line plug, the contact between the socket metal shell and the AV connection line plug metal shell is prior to the contact between the internal metal buckle and the AV connection line plug metal core, and the socket metal shell is used to release static electricity by the contact with the AV connection line plug metal shell. There are disadvantages in that: the time for discharging static electricity through the socket metal housing by contact with the AV connection line plug metal housing is very short, and static electricity cannot be completely discharged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an RCA socket with more thorough electrostatic discharge.

In order to solve the above problems, the technical scheme adopted by the utility model comprises: base, establish at the socket metal casing of base upper end, establish signal terminal in the base, its characterized in that: the base is internally provided with a grounding terminal, the grounding terminal is provided with an elastic contact arm, the upper end of the elastic contact arm is provided with an insulating block, when the RCA socket is plugged with the plug, a pin terminal of the plug presses the insulating block to enable the elastic contact arm to be in contact with the socket metal shell, and the elastic contact arm is in contact with the socket metal shell before the pin terminal is in contact with a signal terminal.

The RCA socket is characterized in that: the elastic contact arm contacts with the socket metal shell before the socket metal shell contacts with the plug metal shell.

The RCA socket is characterized in that: the grounding terminal is characterized in that first plug pins are arranged on two sides of the grounding terminal and are plugged with the plugging grooves in the base through the first plug pins, and the first plug pins are provided with bubble points.

The RCA socket is characterized in that: and a first wiring pin extending out of the base is arranged on one side of the grounding terminal.

The RCA socket is characterized in that: the base upper end integrated into one piece has the jack post, socket metal casing include with the metal plug bush that the jack post suited and with the metal panel that the terminal surface of base suited.

The RCA socket is characterized in that: an insulating ring is riveted at the opening of the metal plug bush, and a positioning flange inserted into the jack post is arranged at the bottom of the insulating ring.

The RCA socket is characterized in that: and second plug pins are arranged on two sides of the metal plug bush.

The RCA socket is characterized in that: and a second wiring pin extending out of the base is arranged on one side of the metal plug bush.

The RCA socket is characterized in that: and one side of the metal panel is provided with a mounting hole.

The RCA socket is characterized in that: the upper end of the insulating block is provided with an inclined plane.

The RCA socket of the utility model has the following advantages: when the RCA socket is plugged with the plug, the pin terminal of the plug presses the insulating block to enable the elastic contact arm to be in contact with the metal shell of the socket, the elastic contact arm is in contact with the metal shell of the socket before the pin terminal is in contact with the signal terminal, the static electricity releasing time can be prolonged, meanwhile, the metal shell of the socket can be used for releasing static electricity through the contact with the metal shell of the connecting wire plug, double static electricity releasing is achieved, and therefore static electricity releasing is more thorough.

The utility model is further described below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic view of the RCA socket of the present invention;

FIG. 2 is a top view of an RCA socket of the present invention;

FIG. 3 is a sectional view taken along line A-A of an RCA socket of the present invention;

FIG. 4 is a sectional view taken along line B-B of an RCA socket of the present invention;

FIG. 5 is an exploded view of an RCA socket of the present invention;

FIG. 6 is a schematic structural view of the ground terminal of the present invention;

FIG. 7 is a schematic structural view of the base of the present invention;

FIG. 8 is a schematic structural view of a metal insert of the present invention;

fig. 9 is a schematic diagram of the connection between the pin terminals of the RCA socket and the plug of the present invention.

Detailed Description

Referring to fig. 1 to 9, the RCA socket of the present invention includes a base 1, a socket metal housing 2 provided at an upper end of the base 1, and a signal terminal 3 provided in the base 1. The signal terminals 3 may be of a snap-in type or a jack type. Install ground terminal 4 in the base 1, ground terminal 4 is equipped with elasticity and touches arm 5, the upper end that elasticity touched arm 5 will be located signal terminal 3's top, the inboard of the upper end that elasticity touched arm 5 is equipped with collets 6. When the RCA socket is plugged with a plug (mainly an AV plug), a pin terminal 7 of the plug presses the insulating block 6, so that the elastic contact arm 5 moves backwards to be in contact with the socket metal shell 2. And the elastic contact arm 5 contacts with the socket metal shell 2 before the pin terminal 7 contacts with the signal terminal 3.

Preferably, the elastic contact arm 5 contacts with the socket metal shell 2 before the socket metal shell 2 contacts with the plug metal shell, so as to achieve the purpose of double static electricity discharge.

Preferably, two sides of the grounding terminal 4 are provided with first plug pins 8, the first plug pins 8 are plugged with the plug grooves 9 in the base 1, and the first plug pins 8 are provided with bubble points 10, so that the grounding terminal 4 is firmly fixed in the base 1.

Preferably, a first wiring pin 11 extending out of the base 1 is disposed on one side of the ground terminal 4, so as to facilitate connection between the ground terminal 4 and a ground wire.

Preferably, the base 1 is integrally formed with a jack post 12 at the upper end thereof, and the metal receptacle housing 2 includes a metal insert 13 adapted to the jack post 12 and a metal panel 14 adapted to the end surface of the base 1. The metal panel 14 is provided with a mounting hole 19 at one side. An insulating ring 15 is riveted at the opening of the metal plug bush 13, and a positioning flange 16 inserted into the jack post 12 is arranged at the bottom of the insulating ring 15.

Preferably, the two sides of the metal insert sleeve 13 are provided with second plug pins 17, and the metal insert sleeve is connected with the base 1 through the second plug pins 17. A second wiring pin 18 extending out of the base 1 is arranged on one side of the metal plug bush 13 so as to facilitate wiring.

Preferably, the upper end of the insulation block 6 is provided with a slope 20 so that the pin terminal 7 can be more smoothly inserted.

Although the present invention has been described with reference to the above embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.

Claims (10)

1. The utility model provides a RCA socket, includes base (1), establishes socket metal casing (2) in base (1) upper end, establishes signal terminal (3) in base (1), its characterized in that: the ground terminal (4) is arranged in the base (1), the ground terminal (4) is provided with an elastic contact arm (5), an insulating block (6) is arranged at the upper end of the elastic contact arm (5), when the RCA socket is plugged with a plug, a pin terminal (7) of the plug presses the insulating block (6) to enable the elastic contact arm (5) to be in contact with the socket metal shell (2), and the elastic contact arm (5) is in contact with the socket metal shell (2) before the pin terminal (7) is in contact with the signal terminal (3).

2. The RCA socket of claim 1, wherein: the elastic contact arm (5) is in contact with the socket metal shell (2) before the socket metal shell (2) is in contact with the plug metal shell.

3. The RCA socket of claim 1, wherein: the grounding terminal is characterized in that first plug pins (8) are arranged on two sides of the grounding terminal (4), the grounding terminal is plugged with a plug groove (9) in the base (1) through the first plug pins (8), and the first plug pins (8) are provided with bubble points (10).

4. The RCA socket of claim 1, wherein: and a first wiring pin (11) extending out of the base (1) is arranged on one side of the grounding terminal (4).

5. The RCA socket of claim 1, wherein: base (1) upper end integrated into one piece has jack post (12), socket metal casing (2) including with metal plug bush (13) that jack post (12) suited and with metal panel (14) that the terminal surface of base (1) suited.

6. The RCA socket of claim 5, wherein: an insulating ring (15) is riveted at the opening of the metal plug bush (13), and a positioning flange (16) inserted into the jack post (12) is arranged at the bottom of the insulating ring (15).

7. The RCA socket of claim 5, wherein: and second plug pins (17) are arranged on two sides of the metal plug bush (13).

8. The RCA socket of claim 5, wherein: and a second wiring pin (18) extending out of the base (1) is arranged on one side of the metal plug bush (13).

9. The RCA socket of claim 5, wherein: and one side of the metal panel (14) is provided with a mounting hole (19).

10. The RCA socket of claim 1, wherein: the upper end of the insulating block (6) is provided with an inclined plane (20).

Images