CN214673070U

CN214673070U - Five utmost point ear machine sockets

Info

Publication number: CN214673070U
Application number: CN202022358312.3U
Authority: CN
Inventors: 夏海林; 张金华
Original assignee: Dongguan Jinghe Electronics Technology Co ltd
Current assignee: Dongguan Jinghe Electronics Technology Co ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-11-09
Anticipated expiration: 2030-10-21

Abstract

The utility model discloses a five-pole earphone socket, which comprises an insulating seat and first to fifth terminals assembled on the insulating seat, wherein an earphone jack is arranged in the insulating seat, and the first to fifth terminals are sequentially arranged from front to back along the plugging direction; the second terminal, the third terminal, the fourth terminal and the fourth terminal are all provided with a contact arm, a connecting arm A which is bent from the top end of the contact arm and then extends downwards, and a pin part A which is connected to the upper section part of the connecting arm A; the insulating seat is provided with a switch terminal A corresponding to one terminal, two terminals or all the terminals in the second terminal, the fourth terminal and the insulating seat respectively, and the switch terminal A is provided with a trigger part A corresponding to the contact arm; when the earphone plug is not inserted, the contact arm keeps contact conduction with the trigger part of the corresponding switch terminal A; when the earphone plug is inserted, the contact arm is extruded by the earphone plug to be separated from the trigger part A outwards; therefore, by improving the terminal structure, the manufacturing efficiency and yield are improved, and the product quality reliability is also greatly improved.

Description

Five utmost point ear machine sockets

Technical Field

The utility model belongs to the technical field of the earphone socket and specifically relates to indicate a five-pole earphone socket.

Background

The earphone socket is used as a connector for audio output, and is widely applied to computer hosts, mobile phones, sound boxes and the like. Traditional earphone socket is tripolar or quadrupole, generally including insulating seat with set up three or four terminals in insulating seat, when earphone plug inserts earphone socket's jack, each terminal and earphone plug contact and the electrical property switches on to realize the output of audio frequency.

Traditional earphone socket, its terminal structural design rationality is not good enough, and the processing procedure defective rate is up to 2-5%, and simultaneously, its material mode of company has decided to adopt the mode of inserting one by one, and every PIN terminal all inserts one by one, and the packaging efficiency is low, moreover, uses many times after, the electrical contact is bad appears easily. These problems, for nearly 10-20 years, have plagued researchers and manufacturers in the industry.

Therefore, a new technical solution needs to be developed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to the deficiency of the prior art, and the main objective of the present invention is to provide a five-pole earphone jack, which improves the manufacturing efficiency and yield and improves the reliability of the product quality by improving the terminal structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a five-pole earphone socket comprises an insulating base and first to fifth terminals assembled on the insulating base, wherein an earphone jack is arranged in the insulating base, the first to fifth terminals are sequentially arranged from front to back along an inserting direction, and contact parts of the terminals are sequentially exposed in the earphone jack along the inserting direction;

the second terminal, the third terminal, the fourth terminal and the fourth terminal are all provided with a contact arm, a connecting arm A which is bent from the top end of the contact arm and then extends downwards, and a pin part A which is connected to the upper section part of the connecting arm A; one, two or all of the three terminals of the contact parts of the second to fourth terminals are respectively arranged on the corresponding contact arms; the bottom of the insulating seat is provided with three slots A which are arranged at intervals, the second to fourth terminals are inserted into the corresponding slots A from the bottom of the insulating seat for positioning, the pin parts A of the second to fourth terminals extend out of the outer sides of the corresponding slots A, and the contact arms of the second to fourth terminals are arranged along the inner sides of the slots A;

the insulating seat is provided with a switch terminal A corresponding to the second to fourth terminals respectively, and the switch terminal A is provided with a trigger part A corresponding to the contact arm; when the earphone plug is not inserted, the contact arm keeps contact conduction with the trigger part of the corresponding switch terminal A; when the earphone plug is inserted, the contact arm is extruded by the earphone plug to be separated from the trigger part A.

As a preferred scheme, the slot a is arranged on one side of the insulating base, the slot B is arranged on the other opposite side of the insulating base, and the slot B is communicated with the corresponding slot a through a bottom connecting slot of the insulating base; the switch terminal A is inserted into the corresponding slot B from the bottom of the insulating seat and positioned, and the switch terminal A is arranged along the connecting slot so that the trigger part A of the switch terminal A is upwards inserted into the slot A; the switch terminal A is provided with a pin part B which extends out of the other opposite side of the insulating seat.

Preferably, the switch terminal has a connecting arm B, and the connecting arm B is located between the lead part B and the trigger part a.

As a preferable scheme, the first terminal is provided with a cover plate part, a contact elastic sheet A connected to the cover plate part, and positioning side edges extending from two sides of the cover plate part; the positioning side is provided with a buckling hole, and at least one positioning side is connected with a pin part C;

the top of the insulating seat is provided with an avoidance groove which penetrates through the earphone jack, and two sides of the insulating seat are respectively provided with clamping protrusions; the first terminal is installed from the top of insulating seat, and its apron portion is located the insulating seat top, and its contact shell fragment A is located dodges the groove, and its knot hole is located corresponding buckle.

Preferably, the fifth terminal is provided with a switch terminal B; when the earphone plug is not inserted, the fifth terminal is disconnected from the switch terminal B and is not contacted; when the earphone plug is inserted, the contact part of the fifth terminal is pressed by the earphone plug to be in contact conduction with the switch terminal B.

As a preferred scheme, a slot C is concavely arranged at the tail end of the insulating seat forward, and the slot C is positioned at the periphery of the earphone jack and penetrates through the earphone jack;

the fifth terminal is provided with two groups of contact elastic sheets B arranged on the opposite sides, and the contact parts of the fifth terminal are respectively arranged on the contact elastic sheets B; the free ends of the two groups of contact elastic sheets B extend along the inserting direction, the fixed ends are respectively connected with fixed side plates, and the fixed side plates on the two sides are connected into a whole through a connecting plate;

the fifth terminal is inserted into the slot C from the tail end of the insulating base, the connecting plate and the fixed side plate of the fifth terminal are positioned in the slot C, and the contact elastic sheets B and the contact parts of the fifth terminal are respectively positioned on two opposite sides of the earphone jack;

a contact shell fragment B is provided with trigger part B, and switch terminal B is provided with corresponding trigger part C, and when inserting the headphone plug, this contact shell fragment B warp, and its trigger part B outwards switches on with the contact of trigger part C.

As a preferable scheme, the connecting arm a is provided with a snap spring arm to abut against an inner wall surface of the slot a.

As a preferable scheme, the rear end of the upper section of the connecting arm a extends to form a widened part for integrally extending and connecting the pin part a; the front end of the upper section of the connecting arm A and the rear end of the widened part are both provided with piercing positioning ends, so that the second to fourth terminals can be stably positioned in the corresponding slots A in a balanced manner.

As a preferable scheme, a top reserved plane of the insulating seat is used as an adsorption surface.

As a preferred scheme, each terminal is provided with a pin part extending out of the outer side of the insulating seat, the pin part is bent to form a limiting arm, a step is arranged on the insulating seat, and the limiting arm is limited on the step to adjust the height of a sunk plate of the pin part.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, and concretely, according to the technical scheme, the manufacturing efficiency and yield are improved and the reliability of the product quality is greatly improved mainly by improving the terminal structure;

secondly, the switch terminal A can be freely arranged through the structures of the second to fourth terminals and the structure of the switch terminal A, so that different setting requirements of the number of switches on different earphone sockets are met, the universal manufacturing process is facilitated, the mass production is facilitated, the production efficiency is improved, and the production cost is better controlled;

furthermore, the utility model discloses the structure of well insulator foot and each terminal for the product size is controlled well, can satisfy the reliable location of installing that reaches each terminal in less size product, and the superior performance.

To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions achieved thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a diagram of an assembly structure of an embodiment of the present invention;

FIG. 2 is a view of an alternative angle assembly structure of the embodiment of the present invention;

FIG. 3 is a first exploded view of an embodiment of the present invention;

FIG. 4 is a second exploded view of the embodiment of the present invention;

FIG. 5 is a third exploded view of an embodiment of the present invention;

FIG. 6 is a fourth exploded view of the embodiment of the present invention;

fig. 7 is a first cross-sectional view of an embodiment of the present invention (including an earphone plug);

fig. 8 is a first cross-sectional view of an embodiment of the invention (without the headphone plug);

fig. 9 is a diagram of a second cross-sectional structure of an embodiment of the present invention (without an earphone plug);

fig. 10 is a diagram of a second cross-sectional structure of an embodiment of the present invention (including an earphone plug);

fig. 11 is a view showing a state before and after the division in manufacturing the second to fourth terminal connecting structures and the switch terminal a;

fig. 12 is another view showing the state before and after the material separation when the second to fourth terminal connecting structures and the switch terminal a are manufactured;

fig. 13 is a diagram showing the fifth terminal connecting structure before and after being bent twice;

fig. 14 is a structural view of a first terminal according to an embodiment of the present invention;

fig. 15 is a structural view of second to fourth terminals and a switch terminal a according to an embodiment of the present invention;

fig. 16 is a structural view of a fifth terminal according to an embodiment of the present invention;

fig. 17 is a structural diagram of a switch terminal B according to an embodiment of the present invention.

The attached drawings indicate the following:

1. insulating seat 2, slot A3, slot B4 and slot C

5. Clamping protrusion 6, first terminal 7, cover plate part 8 and positioning side edge

9. Buttonhole 10, second terminal 11, third terminal 12, fourth terminal

13. Fifth terminal 14, contact arm 15, connecting arm a16, and lead part a

17. Switch terminal A18, switch terminal B19, trigger part A20, trigger part B

21. Trigger part C22, lead part B23, lead part C24 and lead part D

25. Contact spring piece A26, contact spring piece B27, connecting arm B28 and connecting arm C

29. Rim charge A30, rim charge B31, bridge 32, rim charge C

33. Pin part E34, limiting boss 35, slot D36 and first fabrication hole

37. Jig riveting avoiding groove 38, second fabrication hole 39 and embedding part

40. Elastic buckle 41, buckle spacing groove 42 and stress relief groove

101. Standing leg 102 and positioning column

Detailed Description

Fig. 1 to 17 show specific structures of embodiments of the present invention. The utility model discloses a five utmost point earphone sockets mainly but not be restricted to and be used for recreation earphone socket.

A five-pole earphone socket comprises an insulating base 1 and first to fifth terminals assembled on the insulating base 1, as shown in the figure, a first terminal 6, a second terminal 10, a third terminal 11, a fourth terminal 12 and a fifth terminal 13; an earphone jack is arranged in the insulating base 1, the first terminal 13, the second terminal 13, the third terminal 13 and the fourth terminal are sequentially arranged along the plugging direction, and the contact parts of the terminals are sequentially exposed in the earphone jack along the plugging direction;

the second terminal, the fourth terminal and the fourth terminal are respectively provided with a contact arm 14, a connecting arm A15 bent from the top end of the contact arm 14 and extending downwards, and a pin part A16 connected to the upper section of the connecting arm A15; the contact portions of the second to fourth terminals are respectively provided to the corresponding contact arms 14; the bottom of the insulating seat 1 is provided with three slots A2 arranged at intervals, the second to fourth terminals are upwards inserted into the corresponding slots A2 from the bottom of the insulating seat 1 for positioning, the pin part A16 of the fourth terminal extends out of the outer side of the corresponding slot A2, and the contact arm 14 of the fourth terminal is arranged along the inner side of the slot A2; in this embodiment, as shown in fig. 15, the contact arm 14 is an elastic arm that can be elastically deformed relative to the connecting arm a15, the contact portions of the second to fourth terminals are cambered convex hulls disposed at the free ends of the contact arm 14, and preferably, a V-shaped convex tip is stamped and formed at the tail end of the free end of the contact arm 14, and is protruded toward the triggering portion a19, the contact area of the V-shaped convex tip is small, the surface of the V-shaped convex tip is not easily stained, and the V-shaped convex tip has a capability of puncturing dirt, which is beneficial to ensuring that the contact arm 14 and the triggering portion a19 keep good contact conduction when the contact arm is not inserted.

The connecting arm A15 is provided with a clamping elastic arm, and the rear end of the upper section of the connecting arm A15 extends to form a widened part for integrally extending and connecting the pin parts A16; the front end of the upper section of the connecting arm A15 and the rear end of the widened part are both provided with piercing positioning ends, so that the second to fourth terminals can be stably positioned in the corresponding slots A2 in a balanced manner. The lead portion a16 is bent in a Z shape in a top view, so that the welding end of the lead portion a16 is deviated from the middle-lower section of the connecting arm a15, and the manufacturing and assembling are convenient.

As shown in fig. 15, the insulating base 1 is provided with a switch terminal a17 corresponding to one, two or all of the second to fourth terminals, and the switch terminal a17 has a triggering portion a19 corresponding to the contact arm 14; when the earphone plug is not inserted, the contact arm 14 keeps contact conduction with the trigger part of the corresponding switch terminal A17; when the earphone plug is inserted, the contact arm 14 is pressed by the earphone plug to be separated from the trigger part A19. The slot A2 is arranged on one side of the insulating seat 1, the slot B3 is arranged on the other opposite side of the insulating seat 1, and the slot B3 is communicated with the corresponding slot A2 through a bottom connecting slot of the insulating seat 1; here, as shown in fig. 2 and 6, in each switch terminal a17, a jig caulking avoiding groove 37 is provided in a portion of the bottom of the insulating base 1 near the side surface, and the jig caulking avoiding groove 37 penetrates the bottom connecting groove and the inserting groove a2, and preferably, three jig caulking avoiding grooves 37 penetrate integrally, so that the terminal can be effectively caulked while protecting the insulating base 1 from being crushed during caulking operation.

The switch terminal A17 is inserted into the corresponding slot B3 from the bottom of the insulating base 1 and positioned, and the switch terminal A17 is arranged along the connecting slot so that the trigger part A19 thereof is inserted into the slot A2 upwards; the switch terminal a17 has a pin portion B22 protruding out of the other opposite side of the insulating base 1. The switch terminal A17 has a connecting arm B27, and the connecting arm B27 is located between the pin part B22 and the trigger part A19. Particularly, switch terminal A17 is including the pin portion B22, first cartridge fixing plate portion, the connection board portion, the second cartridge fixing plate portion that connect gradually, and pin portion B22 is bent outward from the upper end of first cartridge fixing plate portion and is extended upwards to buckle, and preceding, the rear end of first cartridge fixing plate portion all sets up to pierce through the locating end, also indicates to press the shoulder design, is favorable to the terminal riveting for first cartridge fixing plate portion can be balanced firmly to be positioned in corresponding slot B3. The connection plate portion is located at the bottom of the insulating base 1, and preferably, a concave portion may be provided at the bottom of the insulating base 1 for the connection plate portion to be sunk and located. The inner side of the slot A2 is provided with a positioning opening for the insertion of the second insertion fixing plate part, and the front end and the rear end of the second insertion fixing plate part are both provided with piercing positioning ends, so that the second insertion fixing plate part can be stably positioned in the corresponding positioning opening in a balanced manner.

As shown in fig. 1, 3, 5 and 14, the first terminal 6 has a cover plate portion 7, a contact spring a25 connected to the cover plate portion 7, and positioning sides 8 extending from both sides of the cover plate portion 7; the positioning side edge 8 is provided with a buckling hole 9, and at least one positioning side edge 8 is connected with a pin part C; the top of the insulating base 1 is provided with an avoiding groove penetrating through the earphone jack, and two sides of the insulating base 1 are respectively provided with clamping protrusions 5; the first terminal 6 is installed from the top of the insulating base 1, the cover plate part 7 is located at the top of the insulating base 1, the contact spring piece A25 is located in the avoiding groove, and the buckling hole 9 is located in the corresponding buckle. Preferably, the contact shell fragment A25 of first terminal 6 sets up between two parties, contact stability is good, and, on the left side of apron portion 7, the right side is provided with spacing breach, correspondingly, on the left side of the top of insulator seat 1, the right side is provided with spacing boss 34 respectively, spacing boss 34 matches the location with spacing breach, apron portion 7 is subject to between the spacing boss 34 of both sides, spacing boss 34 plays the guard action to first terminal 6, cooperation card is protruding 5, detain the setting of hole 9, form left and right to apron portion 7, before, after, on, down multi-direction spacing, avoid first terminal 6 not hard up the aversion.

As shown in fig. 3, 4, 5, 8, and 16, the fifth terminal 13 is provided with a switch terminal B18; when the headphone plug is not inserted, the fifth terminal 13 is disconnected from the switch terminal B18; when the headphone plug is inserted, the contact portion of the fifth terminal 13 is pressed by the headphone plug and brought into contact with the switch terminal B18 for conduction. A slot C4 is concavely formed forward at the tail end of the insulating base 1, the slot C4 is located at the periphery of and penetrates through the earphone jack, the slot C4 is U-shaped, the fifth terminal 13 has two sets of contact spring pieces B26 arranged at opposite sides, and the contact parts of the fifth terminal 13 are respectively arranged on the contact spring pieces B26; the free ends of the two groups of contact elastic sheets B26 extend along the plugging direction, the fixed ends are respectively connected with fixed side plates, and the fixed side plates at the two sides are connected into a whole through a connecting plate; the fifth terminal 13 is connected to a lead portion D24, which is preferably formed by extending and bending from one side fixed side plate. The fifth terminal 13 is inserted into the slot C4 from the tail end of the insulating base 1, the connecting plate and the fixed side plate thereof are both positioned in the slot C4, and the contact spring B26 and the contact part thereof are respectively positioned on two opposite sides of the earphone jack; a contact spring B26 is provided with a trigger part B20, the switch terminal B18 is provided with a corresponding trigger part C21, when the earphone plug is inserted, the contact spring B26 deforms, and the trigger part B20 is in contact conduction with the trigger part C21 outwards. The switch terminal B18 is provided with a pin portion 33 and an embedded portion 39, the embedded portion 39 extends vertically, and the pin portion 33 is bent and extended outward from the top end of the embedded portion 39;

it should be noted that:

referring to fig. 3, a slot D35 is disposed at a position, close to a side edge, of the top of the insulating base 1, and a first fabrication hole 36 is disposed through an inner wall surface of the slot D35, so that, on one hand, when the insulating base 1 is formed, the size and strength of a die workpiece are enhanced, and the forming quality and yield are higher, and on the other hand, after a subsequent switch terminal B18 is inserted into the slot D35 for matching and positioning, the first fabrication hole 36 at a side surface of the switch terminal B18 can perform ventilation and heat dissipation functions;

referring to fig. 2 and 6, a second fabrication hole 38 is disposed near the tail end of the bottom of the insulating base 1, the second fabrication hole 38 penetrates through the earphone jack and the slot C4, and the second fabrication hole 38 penetrates through the outside from the bottom of the insulating base 1, preferably, the slot C4 penetrates through the outside from the bottom of the insulating base 1 through a notch, so that the second fabrication hole 38 and the notch penetrate through the bottom of the insulating base 1 to form a molding port with a large area, which can be used as an observation hole to check whether the terminal is assembled in place, and at the same time, the size and strength of the mold workpiece can be increased, and the molding quality and yield are higher;

referring to fig. 4, the slot C4 and the slot D35 are designed as through hole structures that are through to each other, which is beneficial to mold manufacturing, and meanwhile, matching slots are designed for the upper and lower sections of the embedded portion 39, which can effectively fix the terminals and ensure the stability of the contact function of the switch terminal B;

as shown in fig. 5, a fixed side plate of the fifth terminal 13 is provided with an elastic buckle 40 protruding outward, and correspondingly, two pairs of inner wall surfaces of the slot C4 are respectively provided with a buckle avoiding groove 41 and a stress relieving groove 42, so as to enhance the mold workpiece, facilitate smooth positioning of the elastic buckle 40 in the insulating base 1, and avoid damage to the fifth terminal during the insertion process.

As shown in fig. 7 and 8, the fifth terminal 13 adopts an opposite-side clamping structure, so that the clamping force is increased, and the earphone cannot be loosened when being shaken. When assembling, the two parts are inserted into each other in front and back directions and contacted transversely. Avoidance is arranged on two sides, so that the terminal cannot be deformed obviously when being inserted, the slit extrusion process is avoided, and the assembly is ensured to be in place, stable and reliable.

A manufacturing process of a five-pole ear phone socket is characterized in that the five-pole ear phone socket is the five-pole ear phone socket; the method comprises the following steps:

step 1, firstly, preparing an insulating base 1, a first terminal 6, second to fourth terminal connecting structures, a switch terminal A17 and a fifth terminal 13; as shown in fig. 11 and 12, preferably, when manufacturing the second to fourth terminal connecting structures and the switch terminal a17, the second to fourth terminal connecting structures are arranged on one side, the second to fourth terminals are connected to the rim charge a29 through the connecting arm a15, the three switch terminals a17 are arranged on the other side, the three terminals are connected to the rim charge B30 through the connecting arm B27, the rim charge a29 and the rim charge B30 are arranged on the opposite sides, and the rim charge a29 and the rim charge B30 are connected through the material bridge 31, so that the two parts of the second to fourth terminal connecting structures and the switch terminal a17 are connected together by the same metal plate; then, the material bridge 31 is cut off (typically, the material bridge 31 is cut off by a die), and the material bridge is divided into two parts, namely a second to fourth terminal connection structure and a switch terminal a17 connection structure, which are respectively installed in the insulating base 1 and cut off the edge material a29 and the edge material B30. Thus, the second to fourth terminals can be inserted at one time. In the manufacturing process, the scheme that the second to fourth terminal connecting structures and the switch terminal A17 are connected together by the same metal plate is favorable for electroplating, the terminals can be better protected during material collection, only one set of die is needed during production forming, the production cost is saved, the stamping and bending forming processes are completed together, and the production efficiency is improved. And, during the equipment, second to fourth terminal are vertical insertion, form horizontal elasticity butt, and stability is good.

As shown in fig. 13 and 16, the fifth terminal 13 has two sets of contact springs B26 disposed on opposite sides, and the contact portions of the fifth terminal 13 are disposed on the contact springs B26, respectively; the free ends of the two groups of contact elastic sheets B26 extend along the plugging direction, the fixed ends are respectively connected with fixed side plates, and the fixed side plates at the two sides are connected into a whole through a connecting plate;

in step 1, when the fifth terminal 13 is manufactured, the fixed side plates and the connecting plates on the two sides are arranged in the same plane, the contact elastic sheet B26 is bent and connected to the corresponding fixed side plate and is connected to the rim charge C32 through the connecting arm C28, and at this time, the fifth terminal 13 connecting structure is defined as one-time bending; electroplating in the state of the primary bent fifth terminal 13 connecting structure; then, performing secondary bending, and bending the fixed side plates on the two sides and the connecting plate in a U-shaped bending shape to obtain a fifth terminal 13 connecting structure of the secondary bending; and (3) loading the twice-bent fifth terminal 13 connecting material structure into the insulating base 1 and correspondingly cutting off the edge material C32. According to the manufacturing process, the first-time bending fifth terminal 13 connecting structure is manufactured, the structure is favorable for electroplating and reel material collection, and after the second-time bending, the obtained second-time bending fifth terminal 13 connecting structure can be directly used for loading into the insulating base 1 without reel material collection.

Step 2: the first terminal 6 is assembled on the insulating base 1, the second to fourth terminal connecting structures are assembled on the insulating base 1 to complete the assembly of the second to fourth terminals at one time, the switch terminal a17 is assembled on the insulating base 1, and the fifth terminal 13 is assembled on the insulating base 1. Preferably, the first terminal 6, the second to fourth terminal connecting structures and the switch terminal a17 may be assembled, the fifth terminal 13 may be assembled, and the switch terminal B18 may be assembled. "to assemble the terminals.

As shown in fig. 1 to fig. 3, due to the assembling position relationship of each terminal structure in the insulating base 1 in the embodiment, the second to fourth terminals are inserted from the bottom of the insulating base 1, the slot a2 does not occupy the design space on the top of the insulating base 1, and the top of the insulating base 1 can reserve a large enough plane as an absorption surface, so that in an automated process, the absorption of the insulating base 1 by the absorption nozzle is facilitated, and the absorption of the cover component by attaching a mylar or specially designing is not needed. In practical design, the slot a2 may not penetrate the top of the insulating base 1, and the first terminal 6 is only mounted on the front section of the insulating base 1, after mounting, the top of the insulating base 1, which can be held by the cover plate portion 7 of the first terminal 6, is flush.

And, the insulating seat 1 can be positioned through the design of the step, the height of the sinking plate of the pin part is adjusted through the change of the details, and for each terminal, the insulating seat 1 can be provided with a guide pre-insertion design (such as a chamfer design) so as to facilitate the insertion of the terminal into the insulating seat 1 and smooth assembly. Standing feet 101 can be arranged on the left side and the right side of the insulating base 1 and used for contacting with a PCB firstly, a product is placed stably, and preferably, a positioning column 102 is arranged at the upper end of the standing feet 101, namely: the positioning column 102 and the standing pin 101 are designed into a whole in a two-in-one mode, the positioning column 102 is limited with the PCB, when the earphone plug is inserted, the product has the functions of inserting stopping and backing stopping, and the function of protecting the terminal soldering tin pin is also achieved.

In summary, the design of the present invention is characterized in that the manufacturing efficiency and yield are improved and the reliability of the product quality is greatly improved by improving the terminal structure; through the analysis of the defective rate of a plurality of sample manufacture and the analysis of the defective rate during the actual batch manufacture, the novel proposal of the utility model reduces the defective rate to 0.01-0.02%.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. A five-pole earphone socket is characterized in that: the earphone comprises an insulating seat, and a first terminal, a second terminal, a third terminal, a fourth terminal and a fifth terminal which are assembled on the insulating seat, wherein an earphone jack is arranged in the insulating seat, the first terminal, the second terminal, the third terminal, the fourth terminal and the fifth terminal are sequentially arranged from front to back along an inserting direction, and a contact part of each terminal is sequentially exposed in the earphone jack along the inserting direction;

the second terminal, the third terminal, the fourth terminal and the fourth terminal are all provided with a contact arm, a connecting arm A which is bent from the top end of the contact arm and then extends downwards, and a pin part A which is connected to the upper section part of the connecting arm A; the contact parts of the second to fourth terminals are respectively arranged on the corresponding contact arms; the bottom of the insulating seat is provided with three slots A which are arranged at intervals, the second to fourth terminals are inserted into the corresponding slots A from the bottom of the insulating seat for positioning, the pin parts A of the second to fourth terminals extend out of the outer sides of the corresponding slots A, and the contact arms of the second to fourth terminals are arranged along the inner sides of the slots A;

the insulating seat is provided with a switch terminal A corresponding to one terminal, two terminals or all the terminals in the second terminal, the fourth terminal and the insulating seat respectively, and the switch terminal A is provided with a trigger part A corresponding to the contact arm; when the earphone plug is not inserted, the contact arm keeps contact conduction with the trigger part of the corresponding switch terminal A; when the earphone plug is inserted, the contact arm is extruded by the earphone plug to be separated from the trigger part A.

2. A five-pole earphone jack according to claim 1, wherein: the slot A is arranged on one side of the insulating base, the slot B is arranged on the other opposite side of the insulating base, and the slot B is communicated with the corresponding slot A through a bottom connecting slot of the insulating base; the switch terminal A is inserted into the corresponding slot B from the bottom of the insulating seat and positioned, and the switch terminal A is arranged along the connecting slot so that the trigger part A of the switch terminal A is upwards inserted into the slot A; the switch terminal A is provided with a pin part B which extends out of the other opposite side of the insulating seat.

3. A five-pole earphone jack according to claim 2, wherein: the switch terminal A is provided with a material connecting arm B, and the material connecting arm B is positioned between the pin part B and the trigger part A.

4. A five-pole earphone jack according to claim 1, wherein: the first terminal is provided with a cover plate part, a contact elastic sheet A connected to the cover plate part and positioning side edges extending from two sides of the cover plate part; the positioning side is provided with a buckling hole, and at least one positioning side is connected with a pin part C;

5. A five-pole earphone jack according to claim 1, wherein: the fifth terminal is provided with a switch terminal B; when the earphone plug is not inserted, the fifth terminal is disconnected from the switch terminal B and is not contacted; when the earphone plug is inserted, the contact part of the fifth terminal is pressed by the earphone plug to be in contact conduction with the switch terminal B.

6. A five-pole earphone jack according to claim 5, wherein: the tail end of the insulating seat is concavely provided with a slot C forward, and the slot C is positioned on the periphery of the earphone jack and penetrates through the earphone jack;

7. A five-pole earphone jack according to claim 1, wherein: the material connecting arm A is provided with a buckle elastic arm to abut against the inner wall surface of the slot A.

8. A five-pole earphone jack according to claim 1, wherein: the rear end of the upper section of the connecting arm A extends to form a widened part for integrally extending and connecting the pin part A; the front end of the upper section of the connecting arm A and the rear end of the widened part are both provided with piercing positioning ends, so that the second to fourth terminals can be stably positioned in the corresponding slots A in a balanced manner.

9. A five-pole earphone jack according to claim 1, wherein: and a plane is reserved on the top of the insulating seat and is used as an adsorption surface.

10. A five-pole earphone jack according to claim 1, wherein: each terminal all has the pin portion that stretches out the insulating seat outside, pin portion is buckled there is spacing arm, be provided with the step on the insulating seat, spacing arm is limited in on the step to adjust the heavy board height of pin portion.