A five-pole headphone socket and its manufacturing process

Abstract

The present invention discloses a five-pole headphone socket and a manufacturing process, which includes an insulating base and first to fifth terminals assembled on the insulating base. A headphone jack is provided inside the insulating base, and the first to fifth terminals are arranged in sequence from front to back along the insertion direction. Among them, the second to fourth terminals each have a contact arm, a connecting arm A that is bent from the top of the contact arm and then extends downward, and a pin portion A connected to the upper part of the connecting arm A. The insulating base is respectively provided with switch terminals A corresponding to one terminal, two terminals or all of the second to fourth terminals. The switch terminal A has a trigger portion A provided corresponding to the contact arm. When the headphone plug is not inserted, the contact arm remains in contact conduction with the trigger portion of the corresponding switch terminal A. When the headphone plug is inserted, the contact arm is squeezed by the headphone plug and disengages from the trigger portion A outward. Thus, through the improvement of the terminal structure, the manufacturing efficiency and yield are improved, and the product quality reliability is also greatly improved.

Description

Technical Field

[0001] The invention relates to the field of earphone socket technology, in particular to a five-pole earphone socket and a manufacturing process thereof. Background Art

[0002] As a connector for audio output, the headphone socket is widely used in computer hosts, mobile phones, speakers, etc. The traditional headphone socket is three-pole or four-pole, generally including an insulating seat and three or four terminals arranged in the insulating seat. When the headphone plug is inserted into the jack of the headphone socket, each terminal contacts the headphone plug and is electrically connected, thereby realizing audio output.

[0003] The terminal structure design of traditional headphone jacks is not reasonable, and the process defect rate is as high as 2-5%. At the same time, its material connection method determines that it can only be inserted one by one. Each PIN terminal is inserted one by one, which has low assembly efficiency. Moreover, after repeated use, poor electrical contact is prone to occur. These problems have been plaguing industry R&D personnel and manufacturers for the past 10-20 years.

[0004] Therefore, it is necessary to develop a new technical solution to solve the above problems. Summary of the invention

[0005] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a five-pole headphone socket and a manufacturing process thereof, which improves the manufacturing efficiency and yield rate by improving the terminal structure, and also greatly improves the product quality reliability.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A five-pole earphone socket comprises an insulating seat and first to fifth terminals assembled on the insulating seat, an earphone jack is arranged in the insulating seat, the first to fifth terminals are arranged in sequence from front to back along a plugging direction, and a contact portion of each terminal is exposed in sequence in the earphone jack along the plugging direction;

[0008] The second to fourth terminals all have a contact arm, a connecting arm A bent from the top of the contact arm and extending downward, and a pin portion A connected to the upper portion of the connecting arm A; one terminal, two terminals or all of the three contact portions of the second to fourth terminals are respectively arranged on the corresponding contact arm; three slots A arranged at intervals are arranged at the bottom of the insulating seat, and the second to fourth terminals are inserted into the corresponding slots A from the bottom of the insulating seat for positioning, and their pin portions A extend from the outer side of the corresponding slots A, and their contact arms are arranged along the inner side of the slots A;

[0009] The insulating base is respectively provided with switch terminals A corresponding to the second to fourth terminals. The switch terminal A has a trigger part A corresponding to the contact arm. When the earphone plug is not inserted, the contact arm remains in 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 and disengages from the trigger part A outward.

[0010] As a preferred solution, the slot A is arranged on one side of the insulating base, and a slot B is arranged on the other opposite side of the insulating base. The slot B is communicated with the corresponding slot A through the bottom connecting groove of the insulating base. The switch terminal A is inserted into the corresponding slot B from the bottom of the insulating base for positioning, and the switch terminal A is arranged along the connecting groove so that its trigger part A is inserted upward into the slot A. The switch terminal A has a pin part B extending out of the other opposite side of the insulating base.

[0011] As a preferred solution, the switch terminal has a connecting material arm B, and the connecting material arm B is located between the pin part B and the trigger part A.

[0012] As a preferred solution, the first terminal has a cover plate part, a contact elastic piece A connected to the cover plate part, and positioning side edges extending from both sides of the cover plate part. The positioning side edges are provided with buckling holes, and at least one positioning side edge is connected with a pin part C.

[0013] The top of the insulating base has an avoidance groove penetrating the earphone jack, and clamping protrusions are respectively arranged on both sides of the insulating base. The first terminal is installed from the top of the insulating base, its cover plate part is located on the top of the insulating base, its contact elastic piece A is located in the avoidance groove, and its buckling hole is positioned at the corresponding buckle.

[0014] As a preferred solution, the fifth terminal is configured with a switch terminal B. When the earphone plug is not inserted, the fifth terminal is disconnected and not in contact with the switch terminal B. When the earphone plug is inserted, the contact part of the fifth terminal is extruded by the earphone plug and comes into contact conduction with the switch terminal B.

[0015] As a preferred solution, the tail end of the insulating base is recessed forward with a slot C. The slot C is located around the earphone jack and penetrates the earphone jack.

[0016] The fifth terminal has two groups of contact elastic pieces B arranged on opposite sides. The contact parts of the fifth terminal are respectively arranged on the contact elastic pieces B. The free ends of the two groups of contact elastic pieces B extend along the insertion direction, and the fixed ends are respectively connected with fixed side plates. The two fixed side plates on both sides are connected into one body through a connecting plate.

[0017] The fifth terminal is inserted into the slot C from the tail end of the insulating base. Its connecting plate and fixed side plates are all positioned in the slot C, and its contact elastic pieces B and contact parts are respectively located on the two opposite sides of the earphone jack.

[0018] A contact elastic piece B is provided with a trigger part B, and the switch terminal B is provided with a corresponding trigger part C. When the earphone plug is inserted, the contact elastic piece B deforms, and its trigger part B extends outwards to contact and conduct with the trigger part C.

[0019] A manufacturing process of a five-pole earphone socket, the five-pole earphone socket being the aforementioned five-pole earphone socket; comprising the following steps:

[0020] Step 1, first manufacture an insulating base, a first terminal, a connecting structure of the second to fourth terminals, a switch terminal A, and a fifth terminal;

[0021] Step 2: Assemble the first terminal on the insulating base, assemble the connecting structure of the second to fourth terminals on the insulating base to complete the assembly of the second to fourth terminals at one time, assemble the switch terminal A on the insulating base, and assemble the fifth terminal on the insulating base.

[0022] As a preferred solution, the fifth terminal is configured with a switch terminal B; in Step 2, first assemble the first terminal, then assemble the connecting structure of the second to fourth terminals and the switch terminal A, then assemble the fifth terminal, and then assemble the switch terminal B.

[0023] As a preferred solution, when manufacturing the connecting structure of the second to fourth terminals and the switch terminal A, arrange the connecting structure of the second to fourth terminals on one side and the second to fourth terminals are connected to the side material A through the connecting arm A, arrange the three switch terminals A on the other side and each of them is connected to the side material B through the connecting arm B, the side material A and the side material B are arranged on opposite sides, and the side material A and the side material B are connected through a material bridge. In this way, the connecting structure of the second to fourth terminals and the switch terminal A are connected together by the same metal plate;

[0024] Then, cut off the material bridge and divide it into two parts: the connecting structure of the second to fourth terminals and the connecting structure of the switch terminal A, and respectively install them in the insulating base and cut off the corresponding side material A and side material B.

[0025] As a preferred solution, the fifth terminal has two groups of contact elastic pieces B arranged on opposite sides, and the contact parts of the fifth terminal are respectively arranged on the contact elastic pieces B; the free ends of the two groups of contact elastic pieces B extend along the insertion direction, and the fixed ends are respectively connected with fixed side plates, and the two fixed side plates on both sides are connected into one body through a connecting plate;

[0026] In Step 1, when manufacturing the fifth terminal, first arrange the fixed side plates and connecting plates on both sides in the same plane. Bend and connect the contact elastic piece B to the corresponding fixed side plate, and connect it to the side material C through the connecting material arm C. At this time, it is defined as the fifth-terminal connecting material structure of the first bending. Electroplate in the state of the fifth-terminal connecting material structure of the first bending. Then, perform the second bending to bend the fixed side plates and connecting plates on both sides into a U-shaped state to obtain the fifth-terminal connecting material structure of the second bending. Install the fifth-terminal connecting material structure of the second bending into the insulating seat and cut off the side material C accordingly.

[0027] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions, it mainly improves the manufacturing efficiency and yield by improving the terminal structure, and the reliability of product quality has also been greatly improved.

[0028] Secondly, through the structures of the second to fourth terminals and the structure of the switch terminal A, the switch terminal A can be installed arbitrarily to meet the different setting requirements of the number of switches on different headphone sockets, which is conducive to the generalization of the manufacturing process, suitable for mass production, and conducive to improving production efficiency and better controlling production costs.

[0029] Furthermore, the structures of the insulating seat and each terminal in the present invention enable good control of the product size, can meet the reliable installation and positioning of each terminal in a smaller-size product, and have excellent performance.

[0030] To more clearly illustrate the structural features, technical means, and the specific purposes and functions achieved by the present invention, the present invention will be further described in detail below with reference to the drawings and specific embodiments. Brief Description of the Drawings

[0031] Figure 1 is the assembly structure diagram of the embodiment of the present invention;

[0032] Figure 2 is the assembly structure diagram of the embodiment of the present invention from another angle;

[0033] Figure 3 is the first exploded structure diagram of the embodiment of the present invention;

[0034] Figure 4 is the second exploded structure diagram of the embodiment of the present invention;

[0035] Figure 5 is the third exploded structure diagram of the embodiment of the present invention;

[0036] Figure 6 is the fourth exploded structure diagram of the embodiment of the present invention;

[0037] Figure 7It is a schematic diagram of the first cross-sectional structure of an embodiment of the present invention (including the headphone plug);

[0038] Figure 8 It is a schematic diagram of the first cross-sectional structure of an embodiment of the present invention (excluding the headphone plug);

[0039] Figure 9 Schematic diagram of the second cross-sectional structure of an embodiment of the present invention (excluding the headphone plug);

[0040] Figure 10 It is a schematic diagram of the second cross-sectional structure of an embodiment of the present invention (including the headphone plug);

[0041] Figure 11 It is a schematic diagram of the state before and after separating materials when manufacturing the connecting material structure of the second to fourth terminals and the switch terminal A;

[0042] Figure 12 It is another schematic diagram of the state before and after separating materials when manufacturing the connecting material structure of the second to fourth terminals and the switch terminal A;

[0043] Figure 13 It is a schematic diagram of the state before and after the second bending of the connecting material structure of the fifth terminal;

[0044] Figure 14 It is a schematic diagram of the structure of the first terminal of an embodiment of the present invention;

[0045] Figure 15 It is a schematic diagram of the structures of the second to fourth terminals and the switch terminal A of an embodiment of the present invention;

[0046] Figure 16 It is a schematic diagram of the structure of the fifth terminal of an embodiment of the present invention;

[0047] Figure 17 It is a schematic diagram of the structure of the switch terminal B of an embodiment of the present invention.

[0048] Explanation of the reference numerals in the drawings:

[0049] 1. Insulation base 2. Slot A 3. Slot B 4. Slot C

[0050] 5. Card convex 6. First terminal 7. Cover plate part 8. Positioning side

[0051] 9. Buckling hole 10. Second terminal 11. Third terminal 12. Fourth terminal

[0052] 13. Fifth terminal 14. Contact arm 15. Connecting material arm A 16. Pin part A

[0053] 17. Switch terminal A 18. Switch terminal B 19. Trigger part A 20. Trigger part B

[0054] 21. Trigger part C 22. Pin part B 23. Pin part C 24. Pin part D

[0055] 25. Contact spring piece A 26. Contact spring piece B 27. Connecting material arm B 28. Connecting material arm C

[0056] 29. Scrap A 30. Scrap B 31. Material bridge 32. Scrap C

[0057] 33. Pin part E 34. Limit boss 35. Slot D 36. First process hole

[0058] 37. Fixture riveting avoidance groove 38. Second process hole 39. Embedded part

[0059] 40. Elastic buckle 41. Buckle avoidance groove 42. Stress relief groove

[0060] 101. Standing foot 102. Positioning post Detailed implementation mode

[0061] Please refer to Figures 1 to 17 as shown, which shows the specific structure of the embodiment of the present invention. The five-pole headphone socket described in the present invention is mainly but not limited to being used for game headphone sockets.

[0062] A five-pole headphone socket includes an insulating base 1 and first to fifth terminals assembled on the insulating base 1. As shown in the figure, the first terminal 6, the second terminal 10, the third terminal 11, the fourth terminal 12 and the fifth terminal 13; a headphone jack is provided in the insulating base 1, and the first to fifth terminals 13 are arranged in sequence along the insertion direction, and the contact parts of each terminal are exposed in the headphone jack in sequence along the insertion direction;

[0063] Among them, the second to fourth terminals each have a contact arm 14, a connecting material arm A15 that is bent from the top end of the contact arm 14 and then extends downward, and a pin part A16 connected to the upper part of the connecting material arm A15; the contact parts of the second to fourth terminals are respectively arranged on the corresponding contact arms 14; three slots A2 arranged at intervals are provided at the bottom of the insulating base 1, and the second to fourth terminals are inserted into the corresponding slots A2 from the bottom of the insulating base 1 for positioning, and their pin parts A16 extend out from the outside of the corresponding slots A2, and their contact arms 14 are arranged along the inner side of the slots A2; in this embodiment, as Figure 15 shown, the contact arm 14 is an elastic arm that can elastically deform relative to the connecting material arm A15. The contact parts of the second to fourth terminals refer to the arc-shaped convex bumps arranged at the free ends of the contact arms 14. Preferably, a V-shaped convex tip is stamped at the end of the free end of the contact arm 14, which protrudes toward the trigger part A19. The V-shaped convex tip has a small contact area, its surface is not easy to be contaminated, and it has the ability to pierce dirt, which is beneficial to ensuring good contact conduction between the contact arm 14 and the trigger part A19 in the uninserted state.

[0064] The connecting material arm A15 is provided with a snap spring arm, and a widened portion extends from the rear end of the upper part of the connecting material arm A15 for the integral extended connection of the pin portion A16; the front end of the upper part of the connecting material arm A15 and the rear end of the widened portion are both set as puncturing positioning ends, so that the second to fourth terminals can be positioned in the corresponding slots A2 stably and evenly. The pin portion A16 is bent in a Z shape from a top view angle, so that the soldering end of the pin portion A16 deviates from the middle and lower parts of the connecting material arm A15, which is convenient for manufacturing and assembling.

[0065] As Figure 15 shown, the insulating base 1 is respectively provided with switch terminals A17 corresponding to one terminal, two terminals or all three terminals among the second to fourth terminals. The switch terminal A17 has a trigger portion A19 corresponding to the contact arm 14; when the earphone plug is not inserted, the contact arm 14 remains in contact conduction with the trigger portion of the corresponding switch terminal A17; when the earphone plug is inserted, the contact arm 14 is extruded by the earphone plug and disengages from the trigger portion A19 outward. The slot A2 is arranged on one side of the insulating base 1, and a slot B3 is arranged on the other opposite side of the insulating base 1. The slot B3 is communicated with the corresponding slot A2 through the bottom connecting groove of the insulating base 1; here, as Figure 2 and Figure 6 shown, for each switch terminal A17, a jig riveting avoidance groove 37 is arranged at the side portion of the bottom of the insulating base 1. The jig riveting avoidance groove 37 penetrates through the bottom connecting groove and the slot A2. Preferably, the three jig riveting avoidance grooves 37 are integrally penetrated. During the riveting operation, the terminals can be effectively riveted while protecting the insulating base 1 from being damaged by pressing.

[0066] The switch terminal A17 is inserted into the corresponding slot B3 from the bottom of the insulating base 1 for positioning. Moreover, the switch terminal A17 is arranged along the connecting groove so that its triggering part A19 is inserted upward into the slot A2. The switch terminal A17 has pin parts B22 extending out from the other pair of sides of the insulating base 1. The switch terminal A17 has a connecting material arm B27, and the connecting material arm B27 is located between the pin parts B22 and the triggering part A19. Specifically, the switch terminal A17 includes a pin part B22, a first insertion fixing plate part, a connecting plate part, and a second insertion fixing plate part that are connected in sequence. The pin part B22 extends outwards and then upwards from the upper end of the first insertion fixing plate part. The front and rear ends of the first insertion fixing plate part are both set as puncture positioning ends, which also refers to the design of pressing shoulders, facilitating the riveting of the terminal, so that the first insertion fixing plate part can be positioned stably and balancedly in the corresponding slot B3. The connecting plate part is located at the bottom of the insulating base 1. Preferably, a recess can be provided at the bottom of the insulating base 1 for the connecting plate part to be sunk and positioned. A positioning opening for inserting the second insertion fixing plate part is provided inside the slot A2. The front and rear ends of the second insertion fixing plate part are both set as puncture positioning ends so that the second insertion fixing plate part can be positioned stably and balancedly in the corresponding positioning opening.

[0067] As Figure 1 , Figure 3 , Figure 5 and Figure 14 shown, the first terminal 6 has a cover plate part 7, a contact spring piece A25 connected to the cover plate part 7, and positioning side edges 8 extending from both sides of the cover plate part 7. The positioning side edges 8 are provided with buckle holes 9, and at least one positioning side edge 8 is connected with a pin part C. The top of the insulating base 1 has an avoidance groove penetrating the earphone jack, and clamping protrusions 5 are respectively provided on both sides of the insulating base 1. The first terminal 6 is installed from the top of the insulating base 1, with its cover plate part 7 located at the top of the insulating base 1, its contact spring piece A25 located in the avoidance groove, and its buckle hole 9 positioned at the corresponding buckle. Preferably, the contact spring piece A25 of the first terminal 6 is arranged in the middle, with good contact stability. Moreover, limiting notches are provided on the left and right sides of the cover plate part 7. Correspondingly, limiting protrusions 34 are respectively provided on the left and right sides of the top of the insulating base 1. The limiting protrusions 34 are matched and positioned with the limiting notches. The cover plate part 7 is restricted between the limiting protrusions 34 on both sides. The limiting protrusions 34 play a protective role for the first terminal 6. With the settings of the clamping protrusions 5 and the buckle holes 9, multi-directional limiting of the cover plate part 7 in the left, right, front, rear, up, and down directions is formed to prevent the first terminal 6 from loosening and shifting.

[0068] As Figure 3 , Figure 4 , Figure 5 , Figure 8 and Figure 16As shown, the fifth terminal 13 is configured with a switch terminal B18; when the headphone plug is not inserted, the fifth terminal 13 is disconnected from and not in contact with the switch terminal B18; when the headphone plug is inserted, the contact part of the fifth terminal 13 is squeezed by the headphone plug and comes into contact and conduction with the switch terminal B18. The tail end of the insulating base 1 is recessed forward to form a slot C4. The slot C4 is located around the headphone jack and penetrates the headphone jack. Here, the slot C4 is U-shaped. The fifth terminal 13 has two sets of contact elastic pieces B26 arranged on opposite sides. The contact parts of the fifth terminal 13 are respectively arranged on the contact elastic pieces B26. The free ends of the two sets of contact elastic pieces B26 extend along the insertion direction, and the fixed ends are respectively connected with fixed side plates. The fixed side plates on both sides are connected into one body through a connecting plate. The fifth terminal 13 is connected with a pin part D24. Preferably, it is 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. Its connecting plate and fixed side plates are both positioned in the slot C4, and its contact elastic pieces B26 and contact parts are respectively located on two opposite sides of the headphone jack. One contact elastic piece B26 is provided with a trigger part B20, and the switch terminal B18 is provided with a corresponding trigger part C21. When the headphone plug is inserted, the contact elastic piece B26 deforms, and its trigger part B20 contacts and conducts with the trigger part C21 outward. The switch terminal B18 is provided with a pin part 33 and an embedding part 39. The embedding part 39 extends vertically, and the pin part 33 extends and bends outward from the top end of the embedding part 39;

[0069] It should be noted that:

[0070] Please refer to Figure 3 As shown, a slot D35 is provided at a position near the side of the top of the insulating base 1. A first process hole 36 is penetrated through the inner wall surface of the slot D35. On the one hand, when the insulating base 1 is formed, the size and strength of the mold workpiece are enhanced, and the forming quality and yield are higher. On the other hand, after the switch terminal B18 is inserted into the slot D35 for matching and positioning, the first process hole 36 on the side of the switch terminal B18 can play a role in ventilation and heat dissipation;

[0071] Please refer to Figure 2 and Figure 6 As shown, a second process hole 38 is provided at a position near the tail end of the bottom of the insulating base 1. The second process hole 38 penetrates the headphone jack and the slot C4. At the same time, the second process hole 38 penetrates to the outside from the bottom of the insulating base 1. Preferably, the slot C4 penetrates to the outside through a notch at the bottom of the insulating base 1. In this way, the second process hole 38 and the notch penetrate to form a larger area of forming opening at the bottom of the insulating base 1, which can be used as an observation hole to check whether the assembly of the terminal is in place. At the same time, it can also increase the size and strength of the mold workpiece, and the forming quality and yield are higher;

[0072] Please refer to Figure 4As shown, the slot C4 and the slot D35 are designed as mutually interpenetrating through-hole structures, which is conducive to mold manufacturing. At the same time, matching grooves are designed for the upper and lower sections of the embedded portion 39, which can effectively fix the terminal and ensure the stability of the contact function of the switch terminal B;

[0073] like Figure 5 As shown, a fixed side plate of the fifth terminal 13 is provided with an elastic clip 40 protruding outward, and correspondingly, the inner wall surfaces of the two opposite sides of the slot C4 are respectively provided with a clip avoidance groove 41 and a stress relief groove 42, which play a role in strengthening the mold workpiece and are also beneficial to the smooth positioning of the elastic clip 40 in the insulating seat 1 to avoid damage to the fifth terminal during the insertion process.

[0074] like Figure 7 and Figure 8 As shown, the fifth terminal 13 adopts a clamping structure on the opposite side, which increases the clamping force and prevents the earphone from loosening when it shakes. When assembling, insert it front and back and make lateral contact. There are avoidances on both sides, so that the terminal will not be deformed too obviously when inserted, avoiding the slit squeezing process, ensuring that the assembly is in place, stable and reliable.

[0075] A five-pole earphone socket manufacturing process, wherein the five-pole earphone socket is the five-pole earphone socket described above; comprising the following steps:

[0076] Step 1, first prepare the insulating seat 1, the first terminal 6, the second to fourth terminal connecting structure, the switch terminal A17, and the fifth terminal 13; Figure 11 and Figure 12 As shown, preferably, when manufacturing the second to fourth terminal material connection structure and the switch terminal A17, the second to fourth terminal material connection structure is arranged on one side and the second to fourth terminals are connected to the edge material A29 through the material connection arm A15, and the three switch terminals A17 are arranged on the other side and the three are connected to the edge material B30 through the material connection arm B27, and the edge materials A29 and the edge materials B30 are arranged on opposite sides, and the edge materials A29 and the edge materials B30 are connected by the material bridge 31. In this way, the second to fourth terminal material connection structure and the switch terminal A17 are connected together by the same metal sheet; then, the material bridge 31 is cut off (generally, the material bridge 31 is cut off by a mold), and the material connection structure is divided into two parts: the second to fourth terminal material connection structure and the switch terminal A17 material connection structure, which are respectively installed in the insulating seat 1 and the corresponding cut edge materials A29 and B30. In this way, the second to fourth terminals are inserted at one time. In the manufacturing process, the solution of connecting the second to fourth terminal material connection structure and the switch terminal A17 together with the same metal plate is conducive to electroplating, and the terminal can be better protected when collecting the material. In addition, only one set of molds is needed for production and molding, which saves production costs and completes the stamping and bending molding process at the same time, which is conducive to improving production efficiency. In addition, during assembly, the second to fourth terminals are inserted vertically to form a lateral elastic abutment with good stability.

[0077] As Figure 13 and Figure 16 shown, the fifth terminal 13 has two sets of contact elastic pieces B26 arranged on opposite sides, and the contact parts of the fifth terminal 13 are respectively arranged on the contact elastic pieces B26; the free ends of the two sets of contact elastic pieces B26 extend along the insertion direction, and the fixed ends are respectively connected with fixed side plates, and the two fixed side plates on both sides are connected into one body through a connecting plate;

[0078] In step 1, when manufacturing the fifth terminal 13, first arrange the fixed side plates and the connecting plate on both sides in the same plane, bend and connect the contact elastic pieces B26 to the corresponding fixed side plates, and connect them to the edge material C32 through the connecting material arm C28. At this time, it is defined as the connecting material structure of the fifth terminal 13 with a first bend; electroplate in the state of the connecting material structure of the fifth terminal 13 with a first bend; then, perform a second bend to bend the fixed side plates and the connecting plate on both sides into a U-shaped bend to obtain the connecting material structure of the fifth terminal 13 with a second bend; install the connecting material structure of the fifth terminal 13 with a second bend into the insulating base 1 and cut off the corresponding edge material C32. In this manufacturing process, first obtain the connecting material structure of the fifth terminal 13 with a first bend, and this structure is beneficial to electroplating and coiling for material collection. After the second bend, the obtained connecting material structure of the fifth terminal 13 with a second bend can be directly used to install into the insulating base 1 without coiling for material collection.

[0079] Step 2: Assemble the first terminal 6 on the insulating base 1, assemble the connecting material structures of the second to fourth terminals on the insulating base 1 to complete the assembly of the second to fourth terminals at one time, assemble the switch terminal A17 on the insulating base 1, and assemble the fifth terminal 13 on the insulating base 1. Preferably, the terminals can be assembled in the order of "first assemble the first terminal 6, then assemble the connecting material structures of the second to fourth terminals and the switch terminal A17, then assemble the fifth terminal 13, and then assemble the switch terminal B18."

[0080] As Figures 1 to 3 shown, due to the assembly position relationship of the structures of the respective terminals in the insulating base 1 in this embodiment, the second to fourth terminals are inserted from the bottom of the insulating base 1, and their slots A2 do not occupy the design space at the top of the insulating base 1. A sufficiently large plane can be reserved at the top of the insulating base 1 as an adsorption surface, which is convenient for the suction nozzle to adsorb the insulating base 1 in the automated manufacturing process without pasting mylar or specially designing a suction cover component. In actual design, the slot A2 may not penetrate the top of the insulating base 1, and moreover, the first terminal 6 is only installed at the front section of the insulating base 1. After installation, the cover plate portion 7 of the first terminal 6 can be flush with the top of the insulating base 1.

[0081] In addition, the insulating base 1 can be positioned through a step design and the height of the sunk board of the pin part can be adjusted by changing details. For each terminal, a guiding pre-insertion design (such as a chamfer design) can be made on the insulating base 1 to facilitate the insertion of the terminal into the insulating base 1 and ensure smooth assembly. Standing feet 101 can be provided on the left and right sides of the insulating base 1 for prior contact with the PCB board, so that the product is stably placed. Preferably, positioning posts 102 are provided at the upper ends of the standing feet 101, that is, the positioning posts 102 and the standing feet 101 are integrally designed up and down in a two-in-one form. The positioning posts 102 are limited by the PCB board. When the headphone plug is inserted, the product has functions of preventing insertion and preventing withdrawal, and also plays a role in protecting the solder feet of the terminals.

[0082] To sum up, the design focus of the present invention is mainly to improve the production efficiency and yield by improving the terminal structure, and the product quality reliability is also greatly improved; through the analysis of the defective rates of various sample productions and the defective rate analysis during actual mass production, the new scheme of the present invention reduces the defective rate to 0.01-0.02%.

[0083] Secondly, through the structures of the second to fourth terminals and the structure of the switch terminal A, the switch terminal A can be arbitrarily installed to meet the different setting requirements of the number of switches on different headphone sockets, which is beneficial to the generalization of the manufacturing process, suitable for mass production, and conducive to improving production efficiency and better controlling production costs;

[0084] Furthermore, the structures of the insulating base and each terminal in the present invention enable good control of the product size, can meet the reliable installation and positioning of each terminal in a smaller-sized product, and have excellent performance.

[0085] The above are only the preferred embodiments of the present invention, and do not impose any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A five-pole headphone socket, characterized in that: it includes an insulating base and a first terminal, a second terminal, a third terminal, a fourth terminal, and a fifth terminal assembled on the insulating base. A headphone jack is provided in the insulating base. The first terminal, the second terminal, the third terminal, the fourth terminal, and the fifth terminal are arranged in sequence from front to back along the insertion direction, and the contact portions of each terminal are sequentially exposed in the headphone jack along the insertion direction; wherein, the second terminal, the third terminal, and the fourth terminal each have a contact arm, a connecting material arm A that bends from the top of the contact arm and then extends downward, and a pin portion A connected to the upper part of the connecting material arm A; the contact portions of the second terminal, the third terminal, and the fourth terminal are respectively arranged on the corresponding contact arms; three slots A arranged at intervals are provided at the bottom of the insulating base, and the second terminal, the third terminal, and the fourth terminal are inserted into the corresponding slots A from the bottom of the insulating base for positioning, and their pin portions A extend out from the outside of the corresponding slots A, and their contact arms are arranged along the inner side of the slots A; the insulating base is respectively provided with switch terminals A corresponding to one terminal, two terminals, or all terminals among the second terminal, the third terminal, and the fourth terminal, and the switch terminals A have trigger portions A corresponding to the contact arms; when the headphone plug is not inserted, the contact arm is in contact conduction with the trigger portion of the corresponding switch terminal A; when the headphone plug is inserted, the contact arm is squeezed by the headphone plug and moves out of contact with the trigger portion A.

2. A five-pole headphone socket according to claim 1, characterized in that: the slot A is provided on one side of the insulating base, and slots B are provided on the other pair of sides of the insulating base. The slots B are communicated with the corresponding slots A through the bottom connection groove of the insulating base; the switch terminals A are inserted into the corresponding slots B from the bottom of the insulating base for positioning, and the switch terminals A are arranged along the connection groove so that their trigger portions A are inserted upward into the slots A; the switch terminals A have pin portions B extending out from the other pair of sides of the insulating base.

3. A five-pole headphone socket according to claim 2, characterized in that: the switch terminal A has a connecting material arm B, and the connecting material arm B is located between the pin portion B and the trigger portion A.

4. A five-pole headphone socket according to claim 1, characterized in that: the first terminal has a cover plate portion, a contact spring piece A connected to the cover plate portion, and positioning side edges extending from both sides of the cover plate portion; buckle holes are provided on the positioning side edges, and at least one positioning side edge is connected with a pin portion C; the top of the insulating base has an avoidance groove penetrating the headphone jack, and card protrusions are respectively provided on both sides of the insulating base; the first terminal is installed from the top of the insulating base, its cover plate portion is located on the top of the insulating base, its contact spring piece A is located in the avoidance groove, and its buckle holes are positioned at the corresponding buckles.

5. A five-pole headphone socket according to claim 1, characterized in that: the fifth terminal is configured with a switch terminal B; when the headphone plug is not inserted, the fifth terminal is disconnected and not in contact with the switch terminal B; when the headphone plug is inserted, the contact portion of the fifth terminal is squeezed by the headphone plug and comes into contact conduction with the switch terminal B.

6. A five-pole headphone socket according to claim 5, characterized in that: The tail end of the insulating base is recessed forward with a slot C, which is located around the headphone jack and penetrates the headphone jack; The fifth terminal has two sets of contact elastic pieces B arranged on opposite sides, and the contact parts of the fifth terminal are respectively arranged on the contact elastic pieces B; the free ends of the two sets of contact elastic pieces B extend along the insertion direction, and the fixed ends are respectively connected with fixed side plates, and the two fixed side plates on both sides are connected into one body through a connecting plate; The fifth terminal is inserted into the slot C from the tail end of the insulating base, its connecting plate and fixed side plates are positioned in the slot C, and its contact elastic pieces B and contact parts are respectively located on two opposite sides of the headphone jack; One contact elastic piece B is provided with a trigger part B, and the switch terminal B is provided with a corresponding trigger part C. When inserting the headphone plug, the contact elastic piece B deforms, and its trigger part B contacts and conducts with the trigger part C outward.

7. A manufacturing process for a five-pole headphone socket, characterized in that: The five-pole headphone socket is the five-pole headphone socket described in any one of claims 1 to 6; it includes the following steps: Step 1, first manufacture an insulating base, a first terminal, a connecting structure of the second to fourth terminals, a switch terminal A, and a fifth terminal; Step 2: Assemble the first terminal on the insulating base, assemble the connecting structure of the second to fourth terminals on the insulating base to complete the assembly of the second to fourth terminals at one time, assemble the switch terminal A on the insulating base, and assemble the fifth terminal on the insulating base.

8. A manufacturing process for a five-pole headphone socket according to claim 7, characterized in that: The fifth terminal is configured with a switch terminal B; in step 2, first assemble the first terminal, then assemble the connecting structure of the second to fourth terminals and the switch terminal A, then assemble the fifth terminal, and then assemble the switch terminal B.

9. A manufacturing process for a five-pole headphone socket according to claim 7, characterized in that: When manufacturing the connecting structure of the second to fourth terminals and the switch terminal A, arrange the connecting structure of the second to fourth terminals on one side and the second to fourth terminals are connected to the side material A through the connecting arms A, arrange the three switch terminals A on the other side and each of them is connected to the side material B through the connecting arms B, the side material A and the side material B are arranged on opposite sides, and the side material A and the side material B are connected through a material bridge. In this way, the connecting structure of the second to fourth terminals and the switch terminal A are connected together by the same metal sheet; then, cut off the material bridge and divide it into two parts, namely the connecting structure of the second to fourth terminals and the connecting structure of the switch terminal A, and install them into the insulating base and cut off the corresponding side material A and side material B respectively.

10. A manufacturing process for a five-pole headphone socket according to claim 7, characterized in that: The fifth terminal has two sets of contact elastic pieces B arranged on opposite sides, and the contact parts of the fifth terminal are respectively arranged on the contact elastic pieces B; the free ends of the two sets of contact elastic pieces B extend along the insertion direction, and the fixed ends are respectively connected with fixed side plates, and the two fixed side plates on both sides are connected into one body through a connecting plate; In Step 1, when manufacturing the fifth terminal, first arrange the fixed side plates and connecting plates on both sides in the same plane. Bend and connect the contact elastic piece B to the corresponding fixed side plate, and connect it to the side material C through the connecting material arm C. At this time, it is defined as the fifth terminal connecting material structure with a single bend; electroplate in the state of the fifth terminal connecting material structure with a single bend; then, perform a double bend to bend the fixed side plates and connecting plates on both sides into a U-shaped bend to obtain the fifth terminal connecting material structure with a double bend; install the fifth terminal connecting material structure with a double bend into the insulating seat and cut off the side material C accordingly.

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