CN105098448B - A kind of mobile terminal - Google Patents

Abstract

The present invention disclose a kind of mobile terminal, is related to mobile communication equipment technical field, while mobile terminal thickness is not increased, solves the problems, such as during plug headset plug repeatedly that plastic cement female seat is located at the plastic cement of plug channels inlet and easily cracks.The mobile terminal includes circuit board support and offers the mobile terminal shell of plug channels entrance, and circuit board is equipped between mobile terminal shell and circuit board support；It is connected on circuit board with the first plug channels, the first plug channels with plug channels entrance；The support ring being connected with circuit board is equipped in first plug channels, support ring is used to that headset plug to be supported and is oriented to；The electroconductive elastic sheet group for being contacted with the signaling interface on headset plug is additionally provided on circuit board.Mobile terminal provided by the invention is used for mobile communication equipment technical field.

Description

a mobile terminal

technical field

The present invention relates to the technical field of mobile communication equipment, in particular to a mobile terminal.

Background technique

With the rapid development of mobile communication technology, mobile terminals such as mobile phones and tablet computers are becoming more and more popular, and mobile terminals are increasingly pursuing thinner and lighter for easy portability and use. Many mobile terminals are also provided with an earphone socket matched with the earphone plug, and a terminal for connecting an earphone is integrated on the body of the earphone socket, so as to listen to the content output by the mobile terminal through the earphone.

Please refer to Fig. 1, the existing earphone socket includes a plastic female seat 12 with a plug channel, and spring pins matching the signal interface on the earphone plug are arranged on the plastic female seat 12, so that the earphone plug is integrated with the circuit board circuit connected. In the process of repeatedly plugging and unplugging the earphone plug, the plastic of the plastic female seat located at the entrance 1 of the plug channel is prone to cracking due to repeated stress. In order to avoid the problem that the plastic at the entrance 1 of the plug channel of the plastic female seat 12 is easy to crack during the repeated plugging and unplugging of the earphones, the plastic thickness of the plastic female seat at the entrance of the plug channel is generally increased to form a plastic protrusion 11 to solve this problem of. However, the solution to this problem is based on the premise of increasing the plastic thickness of the plastic female seat at the entrance of the plug channel, thereby increasing the thickness of mobile terminals such as mobile phones and tablet computers, and preventing mobile terminals such as mobile phones and tablet computers from becoming thinner and lighter. direction development.

Contents of the invention

The purpose of the present invention is to provide a mobile terminal, which solves the problem that the plastic at the entrance of the plug channel of the plastic female seat is easy to crack during the process of repeatedly plugging and unplugging the earphone plug without increasing the thickness of the mobile terminal.

In order to achieve the above object, the present invention provides the following technical solutions:

A mobile terminal, comprising a circuit board support and a mobile terminal housing provided with a plug channel entrance, a circuit board is arranged between the mobile terminal housing and the circuit board support; the circuit board has a first plug channel, The first plug channel communicates with the inlet of the plug channel; a support ring connected to the circuit board is provided in the first plug channel, and the support ring is used to support and guide the earphone plug; the The circuit board is also provided with a conductive shrapnel group for contacting the signal interface on the earphone plug, so that the circuit in the earphone plug is connected with the circuit integrated on the circuit board.

Compared with prior art, the beneficial effect of the present invention is:

In the mobile terminal provided by the present invention, the first plug channel on the circuit board communicates with the entrance of the plug channel provided on the housing of the mobile terminal, and the circuit board is provided with a conductive shrapnel group for contacting the signal interface on the earphone plug; When the earphone plug enters the first plug passage from the entrance of the plug passage, each conductive shrapnel in the conductive shrapnel group can contact the signal interface on the earphone, and a support ring connected to the circuit board is also provided in the first plug passage, The support ring can support and guide the earphone plug to ensure that the circuit on the earphone plug can be correctly connected with the circuit integrated on the circuit board to form a conduction loop, so that the earphone can work normally; in addition, the entrance of the plug channel can not only provide The entrance into the first plug channel also has a supporting and guiding effect on the earphone plug. It can be seen that the present invention supports and guides the earphone plug through the support ring and the plug channel entrance, and contacts the signal interface on the earphone plug through the conductive shrapnel in the conductive shrapnel group, ensuring that the circuit on the earphone plug is correctly connected to the circuit board. Connected to the integrated circuit on the phone instead of using the plastic socket, which fundamentally eliminates the problem of cracking of the plastic socket at the entrance of the plug channel during the repeated plugging and unplugging of the headphone plug. Moreover, the conductive part used in the present invention is a conductive shrapnel with elasticity and a small thickness, and the support ring is used to support and guide the earphone plug, and its diameter matches the diameter of the earphone plug, which also avoids the thickness of the mobile terminal. Unnecessary increase.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention, and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute improper limitations to the present invention. In the attached picture:

FIG. 1 is an appearance diagram of an earphone holder in an existing mobile terminal;

FIG. 2 is a diagram of the use state of the support ring and the conductive shrapnel in the mobile terminal provided by the embodiment of the present invention;

Fig. 3 is the connection diagram of circuit board, support ring, conductive shrapnel group in Fig. 2;

FIG. 4 is a connection relationship diagram between a mobile terminal housing and a circuit board bracket in a mobile terminal provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an earphone holder assembly in a mobile terminal provided by an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a mobile terminal casing in a mobile terminal provided by an embodiment of the present invention;

Fig. 7 is a schematic structural view of the circuit board support in Fig. 2;

Fig. 8 is the existing four-section earphone plug;

Reference signs:

1-plug channel entrance, 2-mobile terminal housing;

21-first housing connecting hole, 22-second housing connecting hole;

3-circuit board support, 30-support body;

31-first bracket connecting hole, 32-second bracket connecting hole;

300-U-shaped groove, 301-the second plug channel;

4-circuit board, 40-body part;

41-first extension, 42-second extension;

43-the first plug channel, 410-the first extension connection hole,

420-the second extension part connecting hole, 5-external shrapnel;

6-support ring, 60-metal ring body;

61-the first metal ring connector, 62-the second metal ring connector;

7-microphone signal interface, 8-GND ground signal interface;

9-right channel interface, 10-left channel interface;

11. Plastic protrusion, 12-plastic female seat.

Detailed ways

In order to further illustrate the mobile terminal provided by the embodiments of the present invention, a detailed description will be given below in conjunction with the accompanying drawings.

Please refer to FIG. 4, the mobile terminal provided by the embodiment of the present invention includes a circuit board support 3 and a mobile terminal housing 2 provided with a plug channel entrance 1; please refer to FIG. 5, a mobile terminal housing 2 and a circuit board support 3 are provided There is a circuit board 4; please refer to Fig. 3, there is a first plug passage 43 on the circuit board 4, and the first plug passage 43 communicates with the plug passage entrance 1 (see Fig. 4); the first plug passage 43 is provided with a circuit The support ring 6 connected to the board 4, the support ring 6 is used to support and guide the earphone plug; the circuit board 4 is also provided with a conductive shrapnel group for contacting the signal interface on the earphone plug, so that the circuit in the earphone plug can be connected with the earphone plug. The circuits integrated on the circuit board are connected.

During use, the earphone plug is inserted into the first plug channel 43 from the plug channel entrance 1, and is supported and guided by the support ring 6, so that the signal interface on the earphone plug is connected to the conductive shrapnel in the conductive shrapnel group on the circuit board 4, ensuring The circuit in the headphone plug is properly connected with the circuit integrated on the circuit board to make the headphones work properly.

It can be known from the above use process that in the mobile terminal provided by this embodiment, the first plug channel 43 on the circuit board 4 communicates with the plug channel inlet 1 provided on the mobile terminal housing 2, and the circuit board 4 is also provided with a plug channel entrance 1. The conductive shrapnel group is in contact with the signal interface on the earphone plug; when the earphone plug enters the first plug channel 43 from the plug channel entrance 1, the conductive shrapnel in the conductive shrapnel group can contact the signal interface on the earphone, and the second A plug channel 43 is also provided with a support ring 6 connected to the circuit board 4. The support ring 6 can support and guide the earphone plug, so as to ensure that the circuit on the earphone plug can be correctly connected with the circuit integrated on the circuit board 4 to form a guide. Connect the circuit so that the earphone can work normally. In addition, the plug passage entrance 1 can not only provide the entrance for the earphone plug to enter the first plug passage, but also support and guide the earphone plug; it can be seen that the earphone plug is supported by the support ring 6 and the plug passage entrance 1 in this embodiment and guide, and contact the signal interface on the earphone plug through the conductive shrapnel in the conductive shrapnel group, to ensure that the circuit on the earphone plug is correctly connected to the circuit integrated on the circuit board 4, without using the plastic female seat 12, from Basically, the problem of cracking of the plastic at the entrance 1 of the plug channel of the plastic female base 12 during the repeated plugging and unplugging of the earphone plug is completely eliminated. Moreover, the conductive member used in this embodiment is a conductive shrapnel with elasticity and small thickness, and the support ring is used to support and guide the earphone plug, and its diameter matches the diameter of the earphone plug, which also avoids the thickness of the mobile terminal. Unnecessary increase.

Taking the plug channel entrance 1 on the mobile terminal housing with a diameter of 3.6mm as an example, a 3.5mm earphone plug enters the first plug channel from the plug channel entrance 1, and is connected to the corresponding conductive shrapnel in the conductive shrapnel group, and is supported by The ring 6 and the plug channel entrance 1 are supported and guided, so that the signal interface on the earphone plug matches and contacts with the corresponding conductive shrapnel in the conductive shrapnel group, realizing the normal operation of the earphone. Since the diameters of the plug channel entrance 1 and the support ring 6 are basically the same as the diameter of the earphone plug, it was previously necessary to use a 3.9mm thick earphone holder to carry a 3.5mm earphone plug, and the actually occupied space in this embodiment has a thickness of 3.5 mm. mm, which is the diameter and thickness of an earphone. In this way, during the manufacturing process of the mobile terminal, the thickness increase caused by the earphone holder is reduced to the greatest extent.

Please refer to FIG. 2 , the circuit board 4 in the above-mentioned embodiment includes a main body portion 40 and a first protruding portion 41 and a second protruding portion 42 respectively connected to the main body portion 40; please refer to FIG. 3 , the main body portion 40, the first The protruding portion 41 and the second protruding portion 42 form a first plug channel 43 ; the support ring 6 is connected to the first protruding portion 41 and the second protruding portion 42 respectively. Moreover, the conductive elastic pieces in the group of conductive elastic pieces are arranged on the side of the first protruding portion 41 opposite to the circuit board support 3 ; or the side of the second protruding portion 42 opposite to the circuit board support 3 .

When the conductive elastic sheets in the conductive elastic sheet group are arranged on the side opposite to the first protruding portion 41 and the circuit board support 3 or on the opposite side of the second protruding portion 42 to the circuit board support 3, the circuit board support 3 at this time not only The circuit board 4 can be supported, and each conductive elastic piece of the conductive elastic piece group provided on the circuit board 4 can also be supported. In addition, since the support ring 6 is arranged in the first plug channel 43 formed by the body part 40, the first extension part 41 and the second extension part 42, the support ring 6 is connected with the first extension part 41 and the second extension part respectively. The outlets 42 are connected, and from the perspective of the entire mobile terminal, the first plug channel 43 is essentially located between the mobile terminal housing 2 and the circuit board support 3 , so the circuit board support 3 can also support the support ring 6 .

It should be noted that the circuit board can be a flexible circuit board, or other types of circuit boards, as long as the circuit in the earphone plug can be conducted; and a positioning hole can also be provided on the body part 40, and the positioning hole can be passed through the positioning hole. The positioning bolts in the circuit board 4 are positioned and installed between the mobile terminal housing 2 and the circuit board support 3 .

The specific structure of the support ring 6 in the above-mentioned embodiment is varied, as long as it can support and guide the earphone plug, but regardless of the structure, please refer to Fig. 2, the support ring 6 includes a metal ring body 60 and a metal ring body. 60 connected first metal ring connecting body 61 and second metal ring connecting body 62 .

Please refer to Fig. 2 and Fig. 5, the first metal ring connecting body 61, the circuit board 4, the circuit board bracket 3 and the mobile terminal housing 2 are connected into one body through the first fixing member; the second metal ring connecting body 62, the circuit board 4 , the circuit board support 3 and the mobile terminal housing 2 are connected into one body through the second fixing member.

Please refer to Fig. 2, in order to make the metal ring 6 have the function of anti-wear, the metal ring body 60 in the metal ring 6, the first metal ring connecting body 61 and the second metal ring connecting body 62 are all powder metallurgy parts, so repeated When the earphone plug is drawn and inserted, the metal ring 6 will not be broken due to wear and tear.

The structure of each conductive shrapnel in the conductive shrapnel group in the above-mentioned embodiment is referring to Fig. 2, and each conductive shrapnel in the conductive shrapnel group includes a conductive elastic body and a conductive connecting piece connected to the conductive elastic body; the conductive connecting piece and the circuit board 4 connected. Correspondingly, please refer to Fig. 7, in order to make the circuit board support 3 not only support the circuit board, but also support the conductive shrapnel group and the earphone plug, and guide the earphone plug; the circuit board support 3 includes a U-shaped The bracket body 30 of the slot 300, the U-shaped slot 300 is provided with a second plug channel 301 connected to the plug channel entrance 1; the second plug channel 301 and the first plug channel 43 form the earphone plug channel; the conductive elastic body is located in the U-shaped Any side of the two sides of the second plug channel 301 in the groove 300, the specific position is determined by the position of the conductive elastic body; the bracket body 30 is provided with a card slot group, and the card slot in the card slot group is connected with the conductive spring in the conductive shrapnel group. The shrapnel corresponds; the slots in the slot group snap into the conductive connecting pieces contained in the corresponding conductive shrapnel in the conductive shrapnel group. Since the second plug channel 301 provided in the U-shaped groove 300 communicates with the plug channel inlet 1, the second plug channel 301 and the first plug channel 43 form the earphone plug channel; therefore, when the earphone plug enters the plug channel through the plug channel inlet 1 Finally, not only the first plug channel 43 on the circuit board 4 is occupied, but also the second plug channel 301 on the circuit board support 3 is occupied, so that the circuit board support 3 supports and guides the earphone plug.

Specifically, please continue to refer to Fig. 7, the groove bottom of the U-shaped groove 300 in the above-mentioned embodiment includes the first conductive elastic body groove bottom area, the second conductive elastic body groove bottom area and the bottom area of the first conductive elastic body groove. and the second plug channel 301 between the bottom area of the groove of the second conductive elastic body; the second plug channel 301 includes an arc-shaped groove with a cross section, and the arc-shaped groove, the bottom area of the groove of the first conductive elastic body, the second plug channel 301 The U-shaped channel space formed by the bottom area of the conductive elastic body groove; the U-shaped channel space is close to the plug channel entrance 1 and communicates with the plug channel entrance 1, and the arc-shaped groove carries the terminal signal interface of the earphone plug.

Please refer to Fig. 6, the mobile terminal housing 2 is provided with a first housing connection hole 21 and a second housing connection hole 22; please refer to Fig. 3, a first circuit board connection hole 410 and a second circuit board connection hole 410 are provided on the circuit board 4 Circuit board connecting hole 420; the first metal ring connecting body 61 is provided with a first metal ring connecting hole, and the second metal ring connecting body 62 is provided with a second metal ring connecting hole; please refer to FIG. 4 , on the circuit board bracket 3 The first bracket connection hole 31 and the second bracket connection hole 32 are opened; the first fixing piece passes through the first housing connection hole 21, the first circuit board connection hole 410, the first metal ring connection hole and the first bracket connection hole 31 Connect the mobile terminal housing 2, the circuit board 4, the first metal ring connector and the circuit board bracket 3 into one; the second fixing member passes through the second housing connecting hole 22, the second circuit board connecting hole 420, the second The two metal ring connecting holes and the second bracket connecting hole 32 connect the mobile terminal housing 2 , the circuit board 4 , the second metal ring connecting body and the circuit board bracket 3 into one body.

In order to more clearly illustrate the connection relationship between the mobile terminal housing 2, the circuit board 4, the support ring 6, and the circuit board support 4, the circuit board 2, the support ring 6, and the circuit board support 4 given in the above-mentioned embodiments are as follows: The specific structure is illustrated as an example.

Please refer to Figure 6, the mobile terminal housing 2 is provided with a first housing connection hole 21 and a second housing connection hole 22; please refer to Figure 3, a first bracket connection is provided on the first protruding part 41 of the circuit board Hole 410, the second circuit board connection hole 420 is provided on the second protruding part 42; please refer to Figure 2, the first metal ring connection hole is provided on the first metal ring connector 61, and the second metal ring connector 62 is provided with There is a second metal ring connecting hole; please refer to Figure 7, the first bracket connecting hole 31 and the second bracket connecting hole 32 are opened on the bracket body 30 in the circuit board bracket 3; the first fixing member passes through the first housing and connects The hole 21, the first protruding part connecting hole 410, the first metal ring connecting hole and the first bracket connecting hole 31 connect the mobile terminal housing 2, the first protruding part 41, the first metal ring connecting body 61 and the circuit board support 3 connected into one; the second fixing piece passes through the second shell connecting hole 22, the second extension part connecting hole 42, the second metal ring connecting hole and the second bracket connecting hole 32 to connect the mobile terminal shell 2, the second The protruding part 42, the second metal ring connecting body 62 and the circuit board support 3 are connected into one body.

It can be seen from the above connection relationship that the first metal ring connector 61 and the second metal connector 62 are used to fix the metal ring body 60, and the first metal ring connecting hole and the second metal ring connecting hole opened on the first metal ring connector 61 The second metal ring connecting hole opened on the metal ring connecting body 62 provides a channel for the connection of the mobile terminal casing, the circuit board, and the circuit board bracket. In addition, the first connecting member, the first fixing member and the second fixing member may be fixing members such as screws or nuts, but are not limited thereto.

It should be noted that, since the conductive elastic pieces in the conductive elastic piece group can be arranged on the side of the first extension 41 opposite to the circuit board support 3 , or on the side of the second extension 42 opposite to the circuit board support 3 . Therefore, according to the position of each conductive elastic piece in the conductive elastic piece group, the conductive connecting piece is correspondingly connected to the first protruding portion or the second protruding portion. At the same time, the slots in the slot group correspond to the conductive shrapnel in the conductive shrapnel group; therefore, the slot group is also set according to the position of each conductive shrapnel in the conductive shrapnel group.

Moreover, according to the type of the earphone plug, in the mobile terminal provided in the above embodiment, the conductive shrapnel group is one of the following four types, but not limited to the listed ones:

The first type: the conductive shrapnel group includes ground wire contact shrapnel, monophonic contact shrapnel and microphone contact shrapnel;

The second type: the conductive shrapnel group includes ground wire contact shrapnel and monophonic contact shrapnel;

The third type: the conductive shrapnel group includes the ground wire contact shrapnel, the left channel contact shrapnel, the right audio channel contact shrapnel and the microphone contact shrapnel;

The fourth type: the conductive shrapnel group includes the ground wire contact shrapnel, the left sound channel contact shrapnel and the right sound channel contact shrapnel.

The specific selection of the above four conductive shrapnel groups can be made according to the structure of the earphone plug. Moreover, no matter what kind of conductive shrapnel group it is, the conductive shrapnel closest to the entrance of the plug channel in the conductive shrapnel group is provided with an external shrapnel 5 that facilitates contact with the signal interface on the earphone plug. Taking the conductive shrapnel set suitable for the four-section earphone plug as an example, the relationship among the conductive shrapnel, the support ring and the circuit board in the conductive shrapnel set will be described below.

Please refer to Figure 8, the four-section earphone plug includes a microphone signal interface 7, a GND ground signal interface 8, a right channel interface 9 and a left channel interface 10 arranged in sequence; wherein, the left channel interface 10 is located in the four-section At the end of the earphone plug, the microphone signal interface 7 is connected to the fixed end of the four-section earphone plug.

Compatible with this four-section earphone plug, please refer to Figure 2, the conductive shrapnel group includes the ground wire contact shrapnel, the left channel contact shrapnel, the right sound channel contact shrapnel and the microphone contact shrapnel; among them, from the plug channel Starting from inlet 1, along the axial direction of the plug inlet channel, there are microphone contact shrapnel, ground wire contact shrapnel, right channel contact shrapnel, and left sound channel contact shrapnel; moreover, from the perspective of the support and guiding stability of the earphone plug Generally speaking, it is more appropriate to set the support ring 6 between the ground wire contact shrapnel and the right channel contact shrapnel. place.

Please continue to refer to Fig. 2, the right channel contact shrapnel and the microphone contact shrapnel are arranged on the second extension 42, and the ground wire contact shrapnel is arranged on the first extension 41; The microphone signal interface 7 on the earphone plug is in contact with each other, and the microphone contact shrapnel is provided with an external shrapnel 5; there are two left channel contact shrapnels, which are correspondingly arranged on the first protruding part 41 and the second protruding part 42, Setting two left channel contact shrapnel can prevent the signal interface at the end of the headphone plug from shaking and play a fixed role.

When working, the four-segment earphone plug enters the plug channel through the earphone channel inlet 1, and the four-segment earphone plug passes through the support ring 6, so that the microphone signal interface 7, the GND ground wire signal interface 8, and the right channel interface 9 in the earphone plug , the left channel interface 10 is in contact with the corresponding microphone contact shrapnel, ground wire contact shrapnel, right sound channel contact shrapnel and left sound channel contact shrapnel, and because the microphone contact shrapnel, ground wire contact shrapnel, Both the right channel contact shrapnel and the left sound channel contact shrapnel have elasticity, when the left channel signal interface 10 of the four-section earphone plug contacts with the two left sound channel contact shrapnel, the two left sound channel contacts The shrapnel clamps the left channel signal interface 10 in the plug channel, so that not only the left channel signal interface on the earphone plug is connected with the circuit integrated on the circuit board 4, but also the four-section left channel signal interface (i.e. The end signal interface of the earphone plug) has played a fixed role; in addition, the left channel contact shrapnel can also be set to one, located on the first extension 41 or the second extension 42, which will not affect its connection with the four sections the contact of the left channel signal interface of the headphone plug.

Moreover, regardless of whether it is a microphone contact shrapnel, a ground wire contact shrapnel, or a right channel contact shrapnel, its setting position can be on the first protruding part 41 or on the second protruding part 42. In addition, , the number of microphone contact shrapnel, ground wire contact shrapnel, and right channel contact shrapnel can also be set to two, one of which is set on the first extension 41, and the other is set on the second extension 42 , to fix and support the corresponding parts of the four-section earphone plug.

In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in an appropriate manner.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (8)

1. a kind of mobile terminal, which is characterized in that including circuit board support and offer the mobile terminal of plug channels entrance Housing is equipped with circuit board between the mobile terminal shell and circuit board support；The first plug channels are carried on the circuit board, First plug channels are connected with the plug channels entrance；It is equipped with and the circuit board phase in first plug channels Support ring even, the support ring are used to that headset plug to be supported and is oriented to；It is additionally provided with and is used for and ear on the circuit board The electroconductive elastic sheet group of signaling interface contact on machine transplanting of rice head, so that circuit and circuit phase integrated on circuit board in headset plug Even；

The support ring is separate structure with the electroconductive elastic sheet in the electroconductive elastic sheet group；

Each electroconductive elastic sheet in the electroconductive elastic sheet group includes conductive body and the conduction being connected with the conductive body even Contact pin；The conductive connecting piece is connected with the circuit board；

The circuit board support includes the rack body with U-type groove, is offered and the plug channels entrance in the U-type groove The second plug channels being connected；Second plug channels and first plug channels composition headset plug channel；

The conduction body is located at the both sides of second plug channels in the U-type groove；The rack body is equipped with card slot Group, the card slot in the pocket set are corresponding with the electroconductive elastic sheet in the electroconductive elastic sheet group；Card slot in the pocket set is caught in The conductive connecting piece that the electroconductive elastic sheet includes is corresponded in the electroconductive elastic sheet group.

2. mobile terminal according to claim 1, which is characterized in that the circuit board include body part and with described Body portion not Xiang Lian the first extension and the second extension；The body part, first extension and described second stretch out Portion forms first plug channels；The support ring is connected respectively with first extension and second extension；Institute It states the electroconductive elastic sheet in electroconductive elastic sheet group and is located at first extension one side opposite with the circuit board support or described The two extensions one side opposite with the circuit board support.

3. mobile terminal according to claim 1, which is characterized in that the support ring include metal ring body and with institute State the first becket connector and the second becket connector that metal ring body is connected；The first becket connector, institute Circuit board, the circuit board support and the mobile terminal shell is stated to link into an integrated entity by the first fixing piece；Described second Becket connector, the circuit board, the circuit board support and the mobile terminal shell are connected by the second fixing piece Integrally.

4. mobile terminal according to claim 1, which is characterized in that the slot bottom of the U-type groove includes the first conductive body Slot bottom area, the second conductive body slot bottom area and it is located at the described first conductive body slot bottom area and the second conductive body slot bottom The second plug channels between area；Second plug channels include cross section for the arc groove of arc and by the arc The U-shaped channel space that slot, the first conductive body slot bottom area, the second conductive body slot bottom area are formed；The U-shaped channel Space is connected with the plug hole entrance, and the arc groove carries the distal tip signal interface of the headset plug.

5. mobile terminal according to claim 3, which is characterized in that offer first shell in the mobile terminal shell Connecting hole and second shell connecting hole；First circuit board connecting hole and second circuit board connecting hole are offered on the circuit board； The first becket connecting hole is offered on the first becket connector, second is offered on the second becket connector Becket connecting hole offers first support connecting hole and second support connecting hole on the circuit board support；Described first is solid Part is determined across the first shell connecting hole, the first extension connecting hole, the first becket connecting hole and first described Frame connecting hole is by the mobile terminal shell, the circuit board, the first becket connector and the circuit board support It links into an integrated entity；Second fixing piece passes through the second shell connecting hole, the second extension connecting hole, second metal Ring connecting hole connects the mobile terminal shell, the circuit board, second becket with the second support connecting hole Body and the circuit board support link into an integrated entity.

6. mobile terminal according to claim 2, which is characterized in that be used to insert with the earphone in the electroconductive elastic sheet group The electroconductive elastic sheet of the signaling interface contact of the end of head is two, one of them described electroconductive elastic sheet is located at first extension On, another described electroconductive elastic sheet is located on second extension.

7. mobile terminal according to claim 1, which is characterized in that the electroconductive elastic sheet group include earth wire contact shrapnel, Monophonic contact shrapnel and microphone contact shrapnel；Or,

The electroconductive elastic sheet group includes earth wire contact shrapnel and monophonic contact shrapnel；Or,

The electroconductive elastic sheet group is touched including earth wire contact shrapnel, L channel contact shrapnel, right channel contact shrapnel and microphone Point shrapnel；Or,

The electroconductive elastic sheet group includes earth wire contact shrapnel, L channel contact shrapnel and right channel contact shrapnel.

8. the mobile terminal according to claim 1 or 7, which is characterized in that plug described in the electroconductive elastic sheet group middle-range leads to A nearest electroconductive elastic sheet of road entrance is equipped with the external shrapnel that can be in contact with the signaling interface of the headset plug.