CN203206426U - Improved earphone jack - Google Patents

Abstract

The utility model discloses an improved earphone jack, which comprises a shell, a front contact piece and an elastic piece, wherein the shell is provided with a jack cavity; the front contact piece is arranged on the outer surface of the shell; a bayonet is arranged on the front contact piece; the inner edge of the bayonet is designed to be a chamfer; a clamping table matched with the bayonet on the front contact piece is arranged on the outer side of the shell, and the U-shaped elastic sheet is transversely arranged in the jack cavity; the deformation direction of the elastic sheet is consistent with the insertion direction of the earphone jack. The utility model discloses a shell fragment is horizontal, shell fragment deformation direction is unanimous with headphone plug insertion direction, the contact convex closure on the shell fragment has been cancelled simultaneously, contact between messenger's headphone plug and shell fragment is by the point contact, become the face contact, increase its area of contact, when can effectively increasing plug power, the stability of assurance signal of telecommunication transmission that also can be better, the bayonet socket of its preceding contact piece has the chamfer design simultaneously, fixed fit between assurance bayonet socket that can be better and ka tai is difficult for droing, guarantee the structural stability of headphone jack.

Description

Improved headphone jack

technical field

The utility model relates to an earphone jack, in particular to an improved earphone jack with long service life. the

Background technique

Many electronic and electrical products are equipped with headphone jacks, such as mobile phones, computers, MP3, MP4, etc. the

The traditional earphone jack is generally composed of a shell and a shrapnel. Its specific structure is: a jack is arranged in the shell, and the shrapnel is installed in the jack longitudinally, that is, the deformation direction of the shrapnel and the insertion direction of the earphone plug form an angle of 90 degrees. The front end of the shrapnel is provided with an arc-shaped convex hull, which is used for contacting with the earphone plug to transmit electrical signals, and the shrapnel and the earphone plug are in point contact. the

The earphone jack with the traditional structure has certain deficiencies in the actual use process. Specifically, on the one hand, because the shrapnel and the earphone plug are in point contact, the contact surface is small, and the friction between the shrapnel and the plug is small, which affects the insertion. On the other hand, due to the limitation of the structure of the traditional headphone jack, the insertion direction of the headphone plug and the deformation direction of the shrapnel form an angle of 90 degrees. When the headphone jack is inserted and pulled out, the shrapnel will be affected by the headphone. The stress in the insertion direction, after long-term use of the earphone jack, often causes the deformation of the shrapnel due to the stress, which affects the elasticity of the shrapnel. the

Therefore, the service life of the traditional earphone jack is short, and the plugging force and signal transmission stability of the electronic and electrical products often drop significantly during the normal use period, which affects the normal use of users. the

At the same time, the earphone jacks on most installed electronics and electrical appliances are mostly welded on the circuit board, which is difficult for replacement and maintenance. the

To sum up, how to improve the service life of the earphone jack is an urgent problem to be solved in this industry. the

Utility model content

The purpose of the utility model is to overcome the shortcomings of the traditional earphone jack and provide an earphone jack with a long service life and molded shrapnel. the

In order to achieve the above object, the technical solution adopted in the utility model is:

An improved earphone jack, including a shell, a front contact piece, and a shrapnel, and a jack cavity is arranged on the shell;

The front contact piece is installed on the outer surface of the housing;

A bayonet is provided on the front contact piece;

The inner edge of the bayonet is chamfered;

The outside of the housing is provided with a bayonet that matches the bayonet on the front contact piece;

The elastic end pin of the front contact piece is placed in the cavity for contacting with the earphone plug;

The front end of the shrapnel is U-shaped, connected to a metal pin;

The U-shaped shrapnel is placed horizontally in the socket cavity;

The deformation direction of the shrapnel is consistent with the insertion direction of the earphone jack.

The shrapnel of the utility model is placed horizontally, and the deformation direction of the shrapnel is consistent with the insertion direction of the earphone plug. At the same time, the contact bump on the shrapnel is canceled, so that the contact between the earphone plug and the shrapnel changes from point contact to surface contact, and the contact area is increased. , which can effectively increase the insertion and extraction force, and can better ensure the stability of electrical signal transmission. At the same time, the bayonet of the front contact piece has a chamfered design, which can better ensure the fixed fit between the bayonet and the card table. , not easy to fall off, ensuring the structural stability of the headphone jack. the

Description of drawings

Accompanying drawing 1 is the structural representation of the present utility model, also is abstract with figure. the

Accompanying drawing 2 is the structural representation of the utility model. the

Accompanying drawing 3 is the structural representation of the shrapnel of the utility model. the

Accompanying drawing 4 is the structural representation of the front contact piece of the utility model. the

The labels in the figure are:

(1) shell;

(2) Front contact piece;

(3) Bayonet;

(4) card table;

(5) Shrapnel;

(6) metal pins;

Detailed ways

For convenience of understanding the utility model, now in conjunction with accompanying drawing 1,2,3 give an embodiment, the utility model is made further description. the

Example:

An improved earphone jack, including a housing 1, a front contact piece 2, and a shrapnel 5, the housing 1 is provided with a jack cavity; the front contact piece 2 is installed on the outer surface of the housing 1; the front contact piece 2 is A bayonet 3 is provided; the inner edge of the bayonet 3 is chamfered; the outside of the housing 1 is provided with a bayonet 4 that matches the bayonet 3 on the front contact piece 2; the elastic end of the front contact piece 2 is placed In the cavity, it is used to contact the earphone plug; the front end of the shrapnel 5 is U-shaped, connected to a metal pin 6; the U-shaped shrapnel 5 is placed in the jack cavity laterally; the deformation direction of the shrapnel 5 is consistent with the insertion direction of the earphone jack.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any skilled person who is familiar with this profession may use the technical content disclosed above to change or modify it into an equivalent change, etc. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model without departing from the technical solution of the utility model still belong to the scope of the technical solution of the utility model. the

Claims (2)

1. a modified model earphone jack includes housing, preceding contact chip, shell fragment, and housing is provided with the jack cavity; Preceding contact chip is installed in housing outer surface; The elastic tip pin of preceding contact chip places in the cavity, is used for contacting with headset plug, and it is characterized in that: the shell fragment front end takes the shape of the letter U, and is connected with a metal pins; The U-shaped shell fragment laterally places in the jack cavity; The deformation direction of shell fragment is consistent with the earphone jack direction of insertion.

2. a kind of modified model earphone jack described in claim 1, it is characterized in that: preceding contact chip is provided with bayonet socket; Described bayonet socket inside edge is chamfer design; Hull outside is provided with the Ka Tai that matches with bayonet socket on the preceding contact chip.

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