CN-224217749-U - Earphone connector

CN224217749UCN 224217749 UCN224217749 UCN 224217749UCN-224217749-U

Abstract

The earphone connector comprises a plastic base and a plurality of metal terminals, wherein the plastic base comprises an upper surface, a lower surface and a front end surface, a jack, a first mounting groove and a second mounting groove are formed in the plastic base, the first mounting groove and the second mounting groove are located on the same side of the jack, the distance between the first mounting groove and the jack is smaller than that between the second mounting groove and the jack, the projection of the first mounting groove and the projection of the second mounting groove on the longitudinal section of the plastic base are partially overlapped, the metal terminals comprise fixing parts and welding parts, the metal terminals comprise two metal terminals located on the same side of the jack and longitudinally adjacent to each other along the plastic base, the fixing part of one metal terminal is connected in the first mounting groove in a penetrating mode, and the fixing part of the other metal terminal is connected in the second mounting groove in a penetrating mode so as to be fixedly matched with the plastic base. The plastic base has a relatively small length dimension, and is beneficial to the miniaturization design of the earphone connector.

Inventors

LONG HUI
WANG HAIYAN
TENG HONGJUN
HE YONG
XU BO

Assignees

东莞市小迈电子科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250428

Claims (10)

1. The earphone connector is characterized by comprising a plastic base and a plurality of metal terminals; The plastic base comprises an upper surface, a lower surface opposite to the upper surface and a front end surface positioned at the front end of the lower surface, a jack for inserting an earphone plug, a first mounting groove and a second mounting groove are arranged on the plastic base, the jack extends backwards from the front end surface, the first mounting groove and the second mounting groove are positioned on the same side of the jack, the upper end part of the first mounting groove extends to the upper surface, the lower end part of the second mounting groove extends to the lower surface, the distance between the first mounting groove and the jack is smaller than the distance between the second mounting groove and the jack, and at least one part of projections of the first mounting groove and the second mounting groove on the longitudinal section of the plastic base coincide; The metal terminals comprise fixing parts and welding parts connected to the fixing parts, the metal terminals comprise two metal terminals which are located on the same side of the jack and longitudinally adjacent to each other along the plastic base, the fixing parts of one metal terminal are connected to the first mounting groove in a penetrating manner from top to bottom so as to be fixedly matched with the plastic base, the fixing parts of the other metal terminals are connected to the second mounting groove in a penetrating manner from bottom to top so as to be fixedly matched with the plastic base, and the welding parts of the two metal terminals are all arranged outside the plastic base.
2. The earphone connector of claim 1, wherein the two adjacent metal terminals are a first switch terminal and a second switch terminal, the fixing portion of the first switch terminal is inserted into the first mounting groove, the first switch terminal further comprises a first elastic piece and an insulating block, one end of the first elastic piece is connected to the fixing portion of the first switch terminal, the other end of the first elastic piece is gradually inclined towards the jack, the insulating block wraps the other end of the first elastic piece and is arranged at the rear end of the jack, the fixing portion of the second switch terminal is inserted into the second mounting groove, the second switch terminal further comprises a second elastic piece and a matching portion, one end of the second elastic piece is connected to the fixing portion of the second switch terminal, the matching portion is located at the other end of the second elastic piece and is located at the outer side of the first elastic piece, and the insulating block is used for being extruded by the earphone plug to drive the first elastic piece to deform outwards when the earphone plug is inserted into the rear end of the jack, so that the outwards deformed first elastic piece contacts with the matching portion and is electrically conducted.
3. The earphone connector of claim 2, wherein the portion of the plastic base between the first mounting groove and the second mounting groove forms an insulating wall, the insulating wall is provided with a relief notch, and the second spring passes through the relief notch from the second mounting groove to position the mating portion in the first mounting groove.
4. The earphone connector of claim 2, wherein the welding portion of the first switch terminal comprises a first horizontal connecting section bent outwardly from the top edge of the fixing portion of the first switch terminal to be in a horizontal state, and a first vertical section bent downwardly from the outer side end of the first horizontal connecting section to be in a vertical state, and the lower portion of the first vertical section extends out of the plastic base.
5. The earphone connector of claim 4, wherein the plastic base is provided with a first through groove extending downwards from an upper surface thereof and a first sinking groove positioned on the upper surface thereof, an outer side edge of the first sinking groove is connected with the first through groove, an inner side edge of the first sinking groove is connected with the first mounting groove, the first horizontal connecting section is arranged in the first sinking groove, and a lower part of the first vertical section protrudes out of the plastic base after passing through the first through groove.
6. The earphone connector of claim 5, wherein the welding portion of the second switch terminal includes a second horizontal connecting section bent horizontally from the middle of the height direction of the second switch terminal fixing portion, a second vertical section bent vertically from the outer end of the second horizontal connecting section, a receiving groove with a downward opening is provided on the plastic base, the second horizontal connecting section abuts against the top surface of the receiving groove, and the lower portion of the second vertical section protrudes outside the plastic base after penetrating out of the opening of the receiving groove.
7. The earphone connector of claim 6, wherein the lower portion of the first vertical section and the lower portion of the second vertical section are both sheet-shaped and in the same plane.
8. The earphone connector of claim 2, wherein the other metal terminals except the first switch terminal and the second switch terminal are signal terminals, the plurality of signal terminals comprise a first signal terminal and a plurality of second signal terminals, the plastic base is provided with a first inserting groove extending upwards from the lower surface of the first inserting groove, the first inserting groove is positioned on the same side of the inserting hole as the first mounting groove and the second mounting groove, the first signal terminal is inserted into the first inserting groove from bottom to top, the plastic base is provided with a plurality of second inserting grooves extending downwards from the upper surface of the second inserting groove, the plurality of second inserting grooves are positioned on one side of the inserting hole away from the first mounting groove and the second mounting groove and are arranged along the front-back direction, and the plurality of second signal terminals are inserted into the plurality of second mounting grooves from top to bottom in a one-to-one correspondence manner.
9. The earphone connector of claim 8, wherein the first signal terminal comprises a first connecting portion extending vertically, a supporting portion extending outwards from the top of the first connecting portion, a first soldering leg extending downwards from the outer side of the supporting portion, a first elastic arm and a first contact portion, a clamping groove is formed in the inner wall surface of the first mounting groove, a clamping hook is arranged on the first connecting portion, the first connecting portion and the first soldering leg are respectively abutted against the inner wall surface and the outer wall surface of the first mounting groove, the clamping hook is clamped in the clamping groove, the lower portion of the first soldering leg protrudes out of the plastic base, one end of the first elastic arm is connected to the first connecting portion, and the first contact portion is located at the other end of the first elastic arm.
10. The earphone connector of claim 8, wherein the second signal terminal comprises a vertically extending second connecting portion, a second soldering leg, a second elastic arm, and a second contact portion, one end of the second elastic arm is connected to the second connecting portion, the second contact portion is located at the other end of the second elastic arm, the second soldering leg comprises a first section extending horizontally and outwards from the second connecting portion, a second section extending downwards from an outer side of the first section, a second through slot extending downwards from an upper surface of the second through slot and a second countersink located on an upper surface of the second through slot are formed in the plastic base, an outer side edge of the second countersink is connected to the second through slot, an inner side edge of the second countersink is connected to the second plugging slot, and the first section of the second soldering leg is placed in the second countersink, and the second section extends downwards through the second through slot and protrudes out of the plastic base.

Description

Earphone connector Technical Field The utility model relates to the technical field of connectors, in particular to an earphone connector. Background The earphone connector is generally used in 3C products such as mobile phones, tablet computers and notebook computers for realizing audio signal transmission, and generally comprises a plastic base and a plurality of metal terminals, wherein the metal terminals comprise signal terminals for signal transmission and switch terminals for detecting whether an earphone plug is in place or not, the metal terminals are connected to the plastic base, the metal terminals are mutually in insulating fit through the plastic base, the metal terminals comprise a fixing part which is inserted into the insulating base, during assembly, the fixing parts of the metal terminals are inserted into mounting grooves formed in the surface of the plastic base, so that the fixing parts are relatively fixed with the plastic base in the mounting grooves, and since the mounting grooves for inserting the fixing parts of the metal terminals into the plastic base are sequentially arranged, the projections of the fixing parts of the adjacent metal terminals on the longitudinal section of the plastic base are not overlapped after the fixing parts of the metal terminals are respectively inserted into the mounting grooves, so that the length dimension of the plastic base is relatively large, and the earphone connector achieves the purposes of reducing the length dimension of the mounting grooves and the dimension of the fixing parts of the metal terminals, namely reducing the dimension of the plastic base, and the fixing strength of the earphone connector is relatively small in contact with the plastic base, and the fixing strength of the earphone connector is relatively small in size, and the fixing strength of the earphone connector is relatively stable. Disclosure of utility model The main objective of the present utility model is to provide an earphone connector, which can make the plastic base have a relatively smaller length dimension on the premise of ensuring the better stability of the earphone connector, and is beneficial to the miniaturization design of the earphone connector. In order to achieve the above purpose, the utility model adopts the following technical scheme: the earphone connector comprises a plastic base and a plurality of metal terminals; The plastic base comprises an upper surface, a lower surface opposite to the upper surface and a front end surface positioned at the front end of the lower surface, a jack for inserting an earphone plug, a first mounting groove and a second mounting groove are arranged on the plastic base, the jack extends backwards from the front end surface, the first mounting groove and the second mounting groove are positioned on the same side of the jack, the upper end part of the first mounting groove extends to the upper surface, the lower end part of the second mounting groove extends to the lower surface, the distance between the first mounting groove and the jack is smaller than the distance between the second mounting groove and the jack, and at least one part of projections of the first mounting groove and the second mounting groove on the longitudinal section of the plastic base coincide; The metal terminals comprise fixing parts and welding parts connected to the fixing parts, the metal terminals comprise two metal terminals which are located on the same side of the jack and longitudinally adjacent to each other along the plastic base, the fixing parts of one metal terminal are connected to the first mounting groove in a penetrating manner from top to bottom so as to be fixedly matched with the plastic base, the fixing parts of the other metal terminals are connected to the second mounting groove in a penetrating manner from bottom to top so as to be fixedly matched with the plastic base, and the welding parts of the two metal terminals are all arranged outside the plastic base. Preferably, the two adjacent metal terminals are a first switch terminal and a second switch terminal, the fixing part of the first switch terminal is inserted into the first mounting groove, the first switch terminal further comprises a first elastic piece and an insulating block, one end of the first elastic piece is connected to the fixing part of the first switch terminal, the other end of the first elastic piece is gradually inclined towards the jack, the insulating block wraps the other end of the first elastic piece and is arranged at the rear end part of the jack, the fixing part of the second switch terminal is inserted into the second mounting groove, the second switch terminal further comprises a second elastic piece and a matching part, one end of the second elastic piece is connected to the fixing part of the second switch terminal, the matching part is positioned at the other end of the second elastic piece and is positioned at the outer side of the