Double-switch 3.5 mm earphone socket

Abstract

The utility model belongs to the technical field of circuits, and particularly relates to a double-switch 3.5 mm earphone socket, which comprises a socket body and a switch terminal, the socket body comprises an insertion seat and a mounting seat which are integrally formed, a jack is arranged in the insertion seat and communicated with the mounting seat, and the switch terminal is arranged in the mounting seat. A right sound channel terminal, a left sound channel terminal and a grounding terminal are arranged in the socket body; the switch terminal comprises a first switch terminal and a second switch terminal, the first switch terminal comprises a first mounting part, the bottom of the first mounting part is provided with a first welding leg extending out of the mounting seat, the first mounting part is provided with a first elastic sheet in a bending manner towards the axis direction of the jack, the second switch terminal comprises a second mounting part, and the second mounting part is provided with a second welding leg extending out of the mounting seat. The front end of the second mounting part is lapped on the first elastic sheet, and the bottom of the second mounting part is provided with a second welding leg extending out of the mounting seat; and the two groups of switch terminals are respectively arranged on two sides in the mounting seat.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuits, and in particular relates to a double-switch 3.5mm headphone socket. Background Art

[0002] The 3.5mm headphone jack is a common electrical interface, mainly used for connecting audio devices such as headphones and speakers. The 3.5mm dual-channel headphone jack has three contact terminals, namely the left and right channels and a common ground wire. In the existing socket design, according to different manufacturers' designs, any terminal may be randomly used as a detection terminal at the same time, or an independent terminal may be used for detection. Its function is that when the headphone plug is inserted into the socket, the contact terminal contacts the headphone plug, changing the original terminal position and realizing the potential change, so that the status is displayed on the audio device, informing the user that the headphone plug has been fully inserted.

[0003] However, for a tapered headphone plug, this detection method may cause the front end of the headphone plug to extend into the detection state, causing the audio device to determine that the headphone plug has been fully inserted and immediately connect the circuit to start working, which may cause an unstable working state and affect the service life of the components. Secondly, when the terminal is damaged, it is easy to cause detection failure and affect circuit stability. Utility Model Content

[0004] Based on the problems mentioned in the above background technology, the utility model provides a double-switch 3.5mm headphone socket.

[0005] The technical solution adopted by the utility model is as follows: a dual-switch 3.5mm headphone socket, comprising a socket body and two groups of switch terminals, the socket body comprising an integrally formed insertion seat and a mounting seat, the insertion seat having a jack, the jack being connected to the mounting seat, the mounting seat being provided with a right channel terminal, a left channel terminal and a ground terminal; each group of the switch terminals comprises a first switch terminal and a second switch terminal clamped in the mounting seat, the first switch terminal comprising a first mounting portion, a first welding leg extending out of the mounting seat being provided at the bottom of the first mounting portion, a first spring sheet being bent in the direction of the axis of the jack, an insulator being provided at one end of the first spring sheet close to the insertion seat, the second switch terminal comprising a second mounting portion, a front end of the second mounting portion being overlapped on the first spring sheet, a second welding leg extending out of the mounting seat being provided at the bottom of the second mounting portion; the two groups of the switch terminals are respectively provided on both sides of the mounting seat.

[0006] Furthermore, the two groups of switch terminals are in a centrally symmetrical relationship.

[0007] Furthermore, the contact points of the ground terminal, the left channel terminal and the right channel terminal are distributed sequentially along the insertion seat toward the mounting seat.

[0008] Furthermore, a buckle cover is provided on the insertion seat.

[0009] Furthermore, the socket body is provided with a connecting pin at one end of the mounting seat.

[0010] Beneficial effects of the utility model:

[0011] Each group of switch terminals includes a first switch terminal and a second switch terminal. The front end of the second switch terminal is overlapped on the first spring sheet. When the headphone plug is inserted, it first contacts the insulator at the front end of the first spring sheet. On the one hand, the static electricity when the headphone plug is inserted is eliminated to prevent the terminal from being damaged by static electricity. On the other hand, under the contact between the spring sheet and the insulator, the headphone plug will not accidentally touch the other terminals but will be directly inserted into place. After the headphone plug is inserted into place, the spring sheet opens to both sides, causing the switch terminal to be disconnected, so that the audio device obtains information, connects the other terminals to start working, and the judgment is more accurate. At the same time, due to the setting of the first switch terminal and the second switch terminal, even if one of them fails, the other will continue to work to ensure the stability of the circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0013] Figure 1 It is a schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of removing the buckle cover of the utility model;

[0015] Figure 3 This is a rear view of the utility model;

[0016] Figure 4 This is an explosion diagram of the utility model;

[0017] Figure 5 This is a rear view of each terminal of the utility model;

[0018] The attached drawings are marked as follows:

[0019] Socket body 1, insertion seat 11, buckle cover 111, mounting seat 12, connecting column 121, jack 13, right channel terminal 14, left channel terminal 15, ground terminal 16, first switch terminal 2, first mounting portion 21, first welding leg 22, first spring piece 23, insulator 24, second switch terminal 3, second mounting portion 31, second welding leg 32. DETAILED DESCRIPTION

[0020] like Figure 1 to Figure 5As shown, a dual-switch 3.5mm headphone socket includes a socket body 1 and two groups of switch terminals. The socket body 1 includes an integrally formed insertion seat 11 and a mounting seat 12. A jack 13 is provided in the insertion seat 11, and the jack 13 is connected to the mounting seat 12. A right channel terminal 14, a left channel terminal 15 and a ground terminal 16 are provided in the mounting seat 12; each group of switch terminals includes a first switch terminal 2 and a second switch terminal 3 clamped in the mounting seat 12, the first switch terminal 2 includes a first mounting portion 21, and the first switch terminal 2 includes a first mounting portion 21. A first welding leg 22 extending out of the mounting seat 12 is provided at the bottom of the first mounting portion 21, a first elastic sheet 23 is bent toward the axial direction of the jack 13 on the first mounting portion 21, an insulator 24 is provided at one end of the first elastic sheet 23 close to the insertion seat 11, the second switch terminal 3 includes a second mounting portion 31, the front end of the second mounting portion 31 is overlapped on the first elastic sheet 23, and a second welding leg 32 extending out of the mounting seat 12 is provided at the bottom of the second mounting portion 31; the two groups of switch terminals are respectively arranged on both sides of the mounting seat 12.

[0021] By adopting the above technical scheme, for the convenience of description, the right channel terminal 14, the left channel terminal 15 and the ground terminal 16 are referred to as the remaining terminals, and two groups of corresponding switch terminals are set in the socket body 1 as detection terminals, wherein each group of switch terminals includes a first switch terminal 2 and a second switch terminal 3, and the front end of the second switch terminal 3 is overlapped on the first spring sheet 23. When the headphone plug enters, it first contacts the insulator 24 at the front end of the first spring sheet 23. On the one hand, it eliminates the static electricity when the headphone plug enters, preventing the terminal from being damaged by static electricity. On the other hand, under the contact between the spring sheet and the insulator 24, the headphone plug will not accidentally touch the remaining terminals, but will be directly inserted into place. After the headphone plug is inserted into place, the spring sheet opens to both sides, causing the switch terminal to be disconnected, so that the audio device obtains information, connects the remaining terminals to start working, and the judgment is more accurate. At the same time, due to the setting of the first switch terminal 2 and the second switch terminal 3, even if one of them fails, the other will continue to work to ensure the stability of the circuit.

[0022] As a preferred solution, the two groups of switch terminals are in a central symmetric relationship. The first welding pins 22 and the second welding pins 32 of the two groups of switch terminals are staggered to ensure smooth circuits. Even if one of the first switch terminals 2 or the second switch terminals 3 has a problem, the other group of switch terminals can also operate normally, achieving double protection.

[0023] As a preferred solution, the contact points of the ground terminal 16, the left channel terminal 15 and the right channel terminal 14 are sequentially distributed along the insertion seat 11 to the mounting seat 12. The raised parts of the ground terminal 16, the left channel terminal 15 and the right channel terminal 14 are contact points with the 0.35mm plug, and the sequential distribution and contact are in accordance with the direct transmission matching with the 3.5mm plug.

[0024] As a preferred solution, a buckle cover 111 is provided on the insertion seat 11. When the socket is installed, the buckle cover 111 facilitates the insertion seat to be adsorbed by a vacuum suction nozzle during installation to achieve automatic board placement.

[0025] As a preferred solution, the socket body 1 is provided with a connecting pin 121 at one end of the mounting seat 12. The provision of the connecting pin 121 facilitates the installation of the socket body 1 on the corresponding device.

[0026] The utility model is described in detail above. The description of the specific embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A dual-switch 3.5mm headphone socket, characterized in that: include A socket body (1), the socket body (1) comprising an integrally formed insertion seat (11) and a mounting seat (12), the insertion seat (11) having a plug hole (13) therein, the plug hole (13) being in communication with the mounting seat (12), the mounting seat (12) being provided with a right channel terminal (14), a left channel terminal (15) and a ground terminal (16); Two groups of switch terminals, each group of switch terminals comprising a first switch terminal (2) and a second switch terminal (3) clamped in a mounting seat (12), the first switch terminal (2) comprising a first mounting portion (21), the bottom of the first mounting portion (21) being provided with a first welding leg (22) extending out of the mounting seat (12), the first mounting portion (21) being provided with a first elastic sheet (23) bent in the axial direction of the plug hole (13), the first elastic sheet (23) being provided with an insulator (24) at one end close to the insertion seat (11), the second switch terminal (3) comprising a second mounting portion (31), the front end of the second mounting portion (31) being overlapped on the first elastic sheet (23), the bottom of the second mounting portion (31) being provided with a second welding leg (32) extending out of the mounting seat (12); The two groups of switch terminals are respectively arranged on two sides of the mounting seat (12).

2. The dual-switch 3.5mm headphone socket according to claim 1, characterized in that: The two groups of switch terminals are in a centrally symmetrical relationship.

3. The dual-switch 3.5mm headphone socket according to claim 1, characterized in that: The contact points of the ground terminal (16), the left channel terminal (15) and the right channel terminal (14) are distributed in sequence along the insertion seat (11) toward the mounting seat (12).

4. The dual-switch 3.5mm headphone socket according to claim 1, characterized in that: A buckle cover (111) is provided on the insertion seat (11).

5. The dual-switch 3.5mm headphone socket according to claim 1, characterized in that: The socket body (1) is provided with a connecting plug (121) at one end of the mounting seat (12).

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