CN107681312B

CN107681312B - Connection structure, sound production subassembly, mobile terminal, electron device and circuit board assembly

Info

Publication number: CN107681312B
Application number: CN201710860774.5A
Authority: CN
Inventors: 谷一平; 周新权; 胡海金
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-09-21
Filing date: 2017-09-21
Publication date: 2020-08-21
Anticipated expiration: 2037-09-21
Also published as: CN107681312A

Abstract

The invention discloses a connecting structure. The connecting structure comprises a base and an elastic sheet. The spring plate comprises a connecting end and a contact end which are opposite. The elastic sheet is elastically connected with the base through the connecting end. The elastic sheet extends from one end of the base and enables a height difference to exist between the contact end and the base. A plurality of convex contacts are formed on one side of the contact end opposite to the base. The invention also discloses a sound production assembly, a mobile terminal, an electronic device and a circuit board assembly. The connecting structure disclosed by the invention utilizes the connecting end and the contact end of the elastic sheet to respectively connect the circuit board and the contact terminal of the functional device such as the loudspeaker, so that the electrical connection of the functional device such as the loudspeaker is realized.

Description

Connection structure, sound production subassembly, mobile terminal, electron device and circuit board assembly

Technical Field

The invention relates to the technical field of electronic equipment, in particular to a connecting structure, a sound production assembly, a mobile terminal, an electronic device and a circuit board assembly.

Background

At present, electronic devices, such as mobile terminals like mobile phones, tablet computers, notebook computers, cameras, etc., or large computers, video conference systems, etc., are provided with speakers to play sound, however, due to long-term use or sound collision in the moving process, the speakers in the electronic devices and the circuit board are prone to poor sound contact, which affects normal sound production of the speakers.

Disclosure of Invention

The embodiment of the invention provides a connecting structure, a sound production assembly, a mobile terminal, an electronic device and a circuit board assembly.

The connection structure of the embodiment of the present invention includes:

a base;

the elastic sheet comprises a connecting end and a contact end which are opposite, the elastic sheet is elastically connected with the base through the connecting end, the elastic sheet extends from one end of the base and enables a height difference to exist between the contact end and the base, and a plurality of convex contacts are formed on one side, opposite to the base, of the contact end.

In some embodiments, the base includes a first end and a second end opposite to each other, the connecting end is connected to the first end, and the spring extends from the first end toward the second end.

In some embodiments, the connecting structure further comprises a reinforcing member extending from the contact end toward the base.

In some embodiments, the base includes a bottom wall, a side wall and a top wall, the bottom wall is opposite to the top wall, the side wall connects the bottom wall and the top wall, a limiting space is formed between the bottom wall, the side wall and the top wall, the reinforcing member includes a body and a limiting member, one end of the body is connected to the contact end, the limiting member is connected to the other end of the body, and the limiting member extends into the limiting space.

In some embodiments, the number of the side walls and the top wall is two, the two side walls are oppositely arranged, the body is located between the two top walls, the bottom wall, each side wall and the corresponding top wall form one limiting space, and two ends of the limiting member respectively extend into the two limiting spaces.

In some embodiments, the spring plate comprises:

a first extension portion;

a first connecting portion connecting the first extending portion and the bottom wall;

a second extension portion;

a second connecting portion connecting the first extension portion and the second extension portion; and

a third connecting portion connecting the second extending portion and the body.

In some embodiments, a width of the second connection portion gradually decreases in a direction from an end of the second connection portion connected to the first extension portion to an end connected to the second extension portion.

In some embodiments, the width of the second extension is less than the gap between the two top walls, and/or the width of the first extension is greater than the gap between the two top walls.

In some embodiments, the limiting member includes a connecting wall and an interference protrusion, one end of the connecting wall is connected to the body, the other end of the connecting wall is connected to the interference protrusion, the connecting wall and the body are not in the same plane, and the interference protrusion protrudes toward the bottom wall.

The sound production assembly of the embodiment of the invention comprises:

a circuit board;

a horn comprising contact terminals; and

in the connection structure of any one of the above embodiments, the contact abuts against the contact terminal, and the base is electrically connected to the circuit board.

The mobile terminal of the embodiment of the invention comprises:

a circuit board;

a horn comprising contact terminals;

in the connection structure of any one of the above embodiments, the contact abuts against the contact terminal, and the base is disposed on the circuit board and electrically connected to the circuit board; and

the circuit board, the loudspeaker and the connecting structure are all accommodated in the shell.

An electronic device according to an embodiment of the present invention includes:

a functional device including a contact terminal; and

in the connection structure of any one of the above embodiments, the contact abuts against the contact terminal.

In some embodiments, the functional device is any one of a speaker, a microphone, a camera, a light sensor, a flashlight, and an antenna.

The circuit board assembly of the embodiment of the invention comprises:

a circuit board; and

in the connection structure of any of the above embodiments, the base of the connection structure is disposed on the circuit board and electrically connected to the circuit board.

The connecting structure, the sound production assembly, the mobile terminal, the electronic device and the circuit board assembly respectively connect the circuit board and the contact terminal of the functional device such as the loudspeaker by utilizing the connecting end and the contact end of the elastic sheet, so that the electrical connection of the functional device such as the loudspeaker is realized.

Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic plan view of a mobile terminal of an embodiment of the present invention;

FIG. 2 is a perspective view of a connection structure according to an embodiment of the present invention;

FIG. 3 is a schematic perspective view of a connection structure according to an embodiment of the present invention;

FIG. 4 is a side view of a connection structure of an embodiment of the present invention;

FIG. 5 is a top view of a connection structure according to an embodiment of the present invention;

fig. 6 is a schematic cross-sectional view of the connection structure of fig. 5 taken along line VI-VI.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. The same or similar reference numbers in the drawings identify the same or similar elements or elements having the same or similar functionality throughout.

In addition, the embodiments of the present invention described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the embodiments of the present invention, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, a mobile terminal 100 according to an embodiment of the present invention includes a circuit board 20, a speaker 30, a connecting structure 10, and a housing (not shown). The circuit board 20, the speaker 30 and the connection structure 10 are all housed in a housing. The horn 30 includes contact terminals 32.

Referring to fig. 2, the connecting structure 10 includes a base 12 and a resilient piece 14. The spring plate 14 includes opposite connection ends 141 and contact ends 142. The elastic sheet 14 is elastically connected to the base 12 through the connecting end 141, and the elastic sheet 14 extends from one end of the base 12 to make a height difference between the contact end 142 and the base 12. A plurality of projecting contacts 143 are formed on the side of contact end 142 opposite base 12.

The contact 143 abuts against the contact terminal 32, and the base 12 is disposed on the circuit board 20 and electrically connected to the circuit board 20.

In the mobile terminal according to the embodiment of the present invention, the connecting end 141 and the contact end 142 of the spring 14 are respectively connected to the circuit board 20 and the contact terminal 32 of the functional device such as the speaker 30, so as to achieve electrical connection of the functional device such as the speaker 30, and the spring 14 has resilience, so as to always keep the contact with the functional device, and the electrical connection is reliable, and the number of the contacts 143 is plural, and the plurality of contacts 143 can be simultaneously electrically connected to the contact terminal 30, so that the reliability of the connection of the plurality of contacts 143 is high, and the occurrence of poor contact is avoided.

Specifically, referring to fig. 1, the mobile terminal 100 may be a mobile phone, a tablet computer, a television, a watch, a head display device, a notebook computer, a camera, etc. The housing may be a casing of the mobile terminal 100, and the circuit board 20, the speaker 30 and the connection structure 10 are accommodated in the housing, and the housing may be used to prevent dust, moisture and the like from corroding the circuit board 20, the speaker 30 and the connection structure 10. The speaker 30 includes a sound cavity 34 and a speaker (not shown), the speaker includes a contact terminal 32, the contact terminal 32 is used for electrically connecting with an external power source, the speaker generates vibration under the excitation of the external power source, and excites the air in the sound cavity 34 to generate vibration, the sound cavity 34 vibrates to generate sound wave to be transmitted to the outside, so as to play music, give out sound alarm and the like.

The circuit board 20 may be a printed circuit board, a flexible circuit board, a rigid-flex board, etc., the circuit board 20 may be a main circuit board 20 on the mobile terminal 100, and the circuit board 20 may be used to electrically connect a power source, various functional devices such as a speaker, a microphone, a camera, a light sensor, a flashlight, an antenna, etc., and controllers thereof, to transmit the power source to the functional devices and the controllers thereof, and to transmit control signals of the controllers to the functional devices, for example, by transmitting varying currents to the speaker 30 to make the speaker 30 emit sounds of different frequencies and different loudness. Preferably, the functional device is detachably connected to the circuit board 20, for example, by means of snap-fit, screw-fit, etc., so as to facilitate replacement of the functional device when the functional device is damaged.

Referring to fig. 1 and fig. 2, the connecting structure 10 includes a base 12 and a resilient piece 14, the base 12 is electrically connected to the circuit board 20, the base 12 can be soldered on the circuit board 20, and the base 12 can also be mounted on the circuit board 20 and electrically connected to the circuit board 20 through a connector. The elastic sheet 14 includes a connecting end 141 and a contact end 142 opposite to each other, the connecting end 141 is elastically connected to the base 12, a height difference exists between the contact end 142 and the base 12, and a plurality of protruding contacts 143 are formed on a side of the contact end 142 opposite to the base 12.

When it is necessary to electrically connect the horn 30 to the circuit board 20, the contact terminal 32 of the horn 30 is aligned with the contact 143, specifically, the horn 30 can be clamped above the circuit board 20 by a mechanical mechanism and the contact 143 is abutted against the contact terminal 32, and the contact end 142 is deflected toward the base 12 under the pressure of the contact terminal 32, that is, the height difference between the contact end 142 and the base 12 is reduced. At this time, the elastic sheet 14 is elastically deformed due to being pressed by the contact terminal 32, for example, the connection terminal 141 is elastically deformed, the elastic sheet 14 generates a resilient force which is restored to an original state, that is, the elastic sheet 14 has a tendency of restoring the height difference between the contact end 142 and the base 12 to a natural state, and the resilient force of the elastic sheet 14 enables the contact 143 to apply pressure to the contact terminal 32, so that the contact 143 and the contact terminal 32 can be always kept in close contact and reliable. The number of the contacts 143 of the embodiment of the present invention is plural, for example, two, three, four, etc., the protruding heights of the plurality of contacts 143 may be the same or different, and the plurality of contacts 143 may contact the contact terminal 32 at the same time, so that when one of the contacts 143 is not in contact with the contact terminal 32, the rest of the contacts 143 may also be used to electrically connect the circuit board 20 and the speaker 30, and the speaker 30 may operate normally.

The base 12 and the resilient plate 14 may be integrally formed, for example, by stamping the blank several times, the material of the connecting structure 10 may be stainless steel, etc. so that it has good strength and electrical conductivity, and the base 12 is easily soldered to the circuit board 20. Further, nickel, tin, or the like may be plated on the outer surface of connection structure 10 to improve the corrosion resistance of connection structure 10.

Referring to fig. 2, in some embodiments, the base 12 includes a first end 121 and a second end 122 opposite to each other, the connecting end 141 is connected to the first end 121, and the elastic piece 14 extends from the first end 121 toward the second end 122.

The connecting end 141 is connected to the first end 121, and the elastic piece 14 extends from the first end 121 toward the second end 122, so that the contact end 142 of the elastic piece 14 is closer to the second end 122 than the connecting end 141, and the transverse dimension of the connecting structure 10 is smaller.

Referring to fig. 2 and 3, in some embodiments, the connecting structure 10 further includes a reinforcing member 16, the reinforcing member 16 extending from the contact end 142 toward the base 12.

Specifically, the stiffener 16 extends from the contact end 142 toward the base 12, the stiffener 16 may be slidably coupled to the base 12 or the stiffener 16 may be spaced apart from the base 12. In the embodiment of the invention, when the contact 143 is not pressed, the reinforcing member 16 is not in contact with the base 12, when the contact 143 is pressed, the contact end 142 is offset towards the base 12, the height difference between the contact end 142 and the base 12 is reduced, one end of the reinforcing member 16 connected with the contact end 142 moves along with the contact end 142, the other end of the reinforcing member 16 is abutted against the base 12, the reinforcing member 16 is also elastically deformed, the reinforcing member 16 applies a resilience force to the contact end 142, the resilience force is transmitted to the contact 143, and further the contact 143 is enabled to press the contact terminal 32, and the contact 143 is connected with the contact terminal 32 more tightly.

Referring to fig. 2 and 3, in some embodiments, the base 12 includes a bottom wall 123, side walls 124, and a top wall 125. The bottom wall 123 is opposite the top wall 125, and the side wall 124 connects the bottom wall 123 and the top wall 125. A spacing space 126 is formed between the bottom wall 123, the side wall 124 and the top wall 125. The reinforcing member 16 includes a body 161 and a limiting member 162, one end of the body 161 is connected to the contact end 142, the limiting member 162 is connected to the other end of the body 161, and the limiting member 162 extends into the limiting space 126.

Specifically, the bottom wall 123 may be in a flat plate shape, the bottom wall 123 may be used for welding with the circuit board 20, the side wall 124 extends from the bottom wall 123, the top wall 125 is connected to the side wall 124 and is opposite to the bottom wall 123, in actual manufacturing, the blank may be punched to form the top wall 125 once, and then the side wall 124 and the bottom wall 123 are punched once, the top wall 125 and the bottom wall 123 may be parallel to each other, and the side wall 124 and the bottom wall 123 may be perpendicular to each other.

It can be understood that elastic deformation easily occurs when the elastic sheet 14 is pressed, however, because the thickness of the elastic sheet 14 is generally small, the elastic sheet 14 is also easily subjected to plastic deformation under the action of force, and thus cannot generate resilience force for restoring to the original state. The limiting member 162 of the embodiment of the present invention extends into the limiting space 126, the limiting member 162 is connected to the contact end 142 through the body 161, when the contact end 142 is pulled to a large extent, the contact end 142 drives the limiting member 162 to move, and the limiting member 162 can be clamped on the top wall 125 or the side wall 124, so as to prevent the elastic sheet 14 from being plastically deformed due to further pulling deformation of the contact end 142. For example, the contact end 142 is pulled to increase the height difference between the contact end 142 and the base 12, and when the height difference increases to a certain extent, the stopper 162 is caught on the top wall 125 to prevent the height difference from increasing.

Referring to fig. 3 and 4, in some embodiments, the number of the side walls 124 and the top wall 125 is two, the two side walls 124 are disposed opposite to each other, and the body 161 is disposed between the two top walls 125. The bottom wall 123, each side wall 124 and the corresponding top wall 125 form a limiting space 126, and two ends of the limiting member 162 respectively extend into the two limiting spaces 126.

Both ends of the limiting member 162 respectively extend from both ends of the body 161, the reinforcing member 16 is integrally formed in an inverted "T" shape, and the body 161 passes through a gap between the two top walls 125 to connect the limiting member 162 and the contact end 142. The two limiting spaces 126 are opposite, two ends of the limiting member 162 respectively extend into the two limiting spaces 126, and the two limiting spaces 126 limit the movement range of the limiting member 162 along the direction from the bottom wall 123 to the top wall 125 (the Z direction shown in fig. 4) and the movement range from one side wall 124 to the other side wall 124 (the X direction shown in fig. 4) together, so that the elastic sheet 14 is prevented from being plastically deformed after being pulled.

Referring to fig. 2 and 5, in some embodiments, the elastic sheet 14 includes a first extending portion 145, a first connecting portion 144, a second extending portion 147, a second connecting portion 146, and a third connecting portion 148. The first connection portion 144 connects the first extension portion 145 and the bottom wall 123. The second connection portion 146 connects the first extension portion 145 and the second extension portion 147. The third connecting portion 148 connects the second extension portion 147 and the body 161.

The connection end 141 is formed at the first connection portion 144, and the contact end 142 is formed at the second extension 147 and the third connection portion 148. The spring 14 includes a first connecting portion 144, a first extending portion 145, a second connecting portion 146, a second extending portion 147 and a third connecting portion 148 in sequence from one end to the other end. The first connection portion 144 has a curved shape, and the first connection portion 144 is elastically deformed and generates an elastic force when the contact 143 is pressed. The first extending portion 145 may have a flat plate shape, and specifically, when the elastic piece 14 is not pressed, the first extending portion 145 may extend in a direction from the first end 121 to the second end 122 in parallel with the bottom wall 123. The second connection portion 146 has a curved shape, and the second connection portion 146 is elastically deformed and generates an elastic force when the contact 143 is pressed. The second extension portion 147 may also have a flat plate shape, and the second extension portion 147 gradually moves away from the bottom wall 123 in a direction from the first end 121 to the second end 122. The third connecting portion 148 is bent, and the third connecting portion 148 is elastically deformed to generate an elastic force when the contact 143 is pressed. Therefore, when the contact 143 is pressed, the first connecting portion 144, the second connecting portion 146 and the third connecting portion 148 of the spring 14 can be elastically deformed, and finally, the respective generated elastic forces are applied to the contact 143, so that the contact 143 presses the contact terminal 32 (as shown in fig. 1), and the contact 143 is reliably connected with the contact terminal 32.

Referring to fig. 5, in some embodiments, the width of the second connection portion 146 gradually decreases from the end of the second connection portion 146 connected to the first extension portion 145 to the end connected to the second extension portion 147.

In this way, when the contact 143 is pressed, the second connecting portion 146 is brought close to the bottom wall 123, the second connecting portion 146 can pass through the gap between the two top walls 125, and the width of the second connecting portion 146 can be smaller than the gap between the two top walls 125, so as to prevent the second connecting portion 146 from moving and interfering with the two top walls 125. And the width of the second connection portion 146 is gradually reduced, so that stress concentration does not occur on the second connection portion 146, and the second connection portion 146 is prevented from being broken or plastically deformed.

Further, referring to fig. 5, each top wall 125 is on the opposite side of the other top wall 125, and a chamfer 1252 is formed at a position corresponding to the second connection portion 146, and the two chamfers 1252 are opposite to each other, so that a gap between the two top walls 125 and the positions corresponding to the second connection portions 146 is larger, so that the second connection portions 146 pass through the two top walls 125, and the deformation space of the elastic sheet 14 is increased.

Referring to fig. 5, in some embodiments, the width of the second extension 147 is smaller than the gap between the two top walls 125.

The width of the second extension 147 is smaller than the gap between the two top walls 125, so that when the contact 143 is pressed, the second extension 147 can pass through the gap between the two top walls 125, and the second extension 147 does not interfere with the two top walls 125 in a movement manner, thereby increasing a deformation space of the dome 14.

Referring again to fig. 5, in some embodiments, the first extension 145 has a width greater than a gap between the two top walls 125. In this way, the strength of the first extending portion 145 is large, the connection width between the first extending portion 145 and the first connection portion 144 is also large, and the first extending portion 145 can transmit the elastic force of the first connection portion 144 more reliably.

Referring to fig. 1 and 6, in some embodiments, the position limiting member 162 includes a connecting wall 1622 and an abutting protrusion 1624, one end of the connecting wall 1622 is connected to the body 161, the other end of the connecting wall 1622 is connected to the abutting protrusion 1624, the connecting wall 1622 and the body 161 are not in the same plane, and the abutting protrusion 1624 protrudes toward the bottom wall 123.

When the contact 143 is pressed to drive the body 161 to move toward the bottom wall 123, the limiting member 162 abuts against the bottom wall 123, specifically, the abutting protrusion 1624 abuts against the bottom wall 123, the connecting wall 1622 is not in the same plane as the body 161, the connecting portion between the connecting wall 1622 and the body 161 is also elastically deformed, and finally, the elastic force is transmitted to the contact 143, so that the contact 143 is in closer contact with the contact terminal 32.

The invention also provides a sound production assembly, which comprises a circuit board 20, a loudspeaker 30 and a connecting structure 10. The horn 30 includes a contact terminal 32, a contact 143 abuts against the contact terminal 32, and the base 12 is electrically connected to the circuit board 20. The circuit board 20, the speaker 30 and the connecting structure 10 of the sound emitting assembly may be the circuit board 20, the speaker 30 and the connecting structure 10 of any of the above embodiments.

The embodiment of the invention also provides an electronic device, which comprises the functional device and the connecting structure 10. The functional device comprises contact terminals 32. The contact 143 of the connection structure 10 interferes with the contact terminal 32. The functional device may be any one of a speaker 30, a microphone, a camera, a light sensor, a flash, and an antenna. The horn 30 and the connecting structure 10 of the electronic device may be the horn 30 and the connecting structure 10 of any of the above embodiments.

Embodiments of the present invention also provide a circuit board assembly, which includes a circuit board 20 and a connection structure 10, wherein a base 12 of the connection structure 10 is disposed on the circuit board 20 and electrically connected to the circuit board 20. The circuit board 20 and the connection structure 10 may be the circuit board 20 and the connection structure 10 of any of the above embodiments.

In the description of the specification, reference to the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, unless specifically limited otherwise.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention, which is defined by the claims and their equivalents.

Claims

1. A connecting structure, characterized by comprising:

the base comprises a first end and a second end which are opposite to each other, the base comprises a bottom wall, a side wall and a top wall, the bottom wall is opposite to the top wall, and the side wall is connected with the bottom wall and the top wall; and

the elastic sheet comprises a connecting end and a contact end which are opposite, the elastic sheet is elastically connected with the base through the connecting end, the elastic sheet extends from one end of the base and enables a height difference to exist between the contact end and the base, and a plurality of convex contacts are formed on one side, opposite to the base, of the contact end;

the connecting end is connected with the first end, and the side wall and the top wall extend to the second end;

the elastic sheet comprises a first extension part, a first connecting part for connecting the first extension part and the bottom wall, a second extension part and a second connecting part for connecting the first extension part and the second extension part;

the width of the second connecting part gradually decreases in a direction from one end of the second connecting part connected with the first extending part to one end connected with the second extending part;

the number of the side walls and the top wall is two, the side walls and the top wall extend to the positions corresponding to the second connecting portions, each top wall is arranged on one side opposite to the other top wall, and a chamfer is formed at the position corresponding to the second connecting portion.

2. The connecting structure of claim 1, wherein the spring extends from the first end toward the second end.

3. The connection according to claim 1, further comprising a reinforcement member extending from the contact end toward the base.

4. The connecting structure according to claim 3, wherein a limiting space is formed between the bottom wall, the side wall and the top wall, the reinforcing member includes a body and a limiting member, one end of the body is connected to the contact end, the limiting member is connected to the other end of the body, and the limiting member extends into the limiting space.

5. The connecting structure according to claim 4, wherein the two side walls are disposed opposite to each other, the body is located between the two top walls, the bottom wall, each side wall, and the corresponding top wall form one limiting space, and two ends of the limiting member respectively extend into the two limiting spaces.

6. The connecting structure according to claim 4, wherein the resilient piece includes:

7. The connection according to claim 6, wherein the width of the second extension is smaller than the gap between the two top walls and/or the width of the first extension is larger than the gap between the two top walls.

8. The connecting structure according to claim 4, wherein the retaining member includes a connecting wall and an abutting protrusion, one end of the connecting wall is connected to the body, the other end of the connecting wall is connected to the abutting protrusion, the connecting wall and the body are not in the same plane, and the abutting protrusion protrudes toward the bottom wall.

9. A sound emitting assembly, comprising:

a circuit board;

a horn comprising contact terminals; and

the connecting structure of any one of claims 1 to 8, wherein the contact abuts against the contact terminal, and the base is electrically connected to the circuit board.

10. A mobile terminal, comprising:

a circuit board;

a horn comprising contact terminals;

the connecting structure of any one of claims 1 to 8, wherein the contact abuts against the contact terminal, and the base is disposed on and electrically connected to the circuit board; and

11. An electronic device, comprising:

a functional device including a contact terminal; and

the connecting structure of any one of claims 1 to 8, wherein the contact abuts against the contact terminal.

12. The electronic device of claim 11, wherein the functional device is any one of a speaker, a microphone, a camera, a light sensor, a flashlight, and an antenna.

13. A circuit board assembly, comprising:

a circuit board; and

the connection structure of any one of claims 1-8, a base of the connection structure being disposed on and electrically connected to the circuit board.