CN213938310U

CN213938310U - Loudspeaker and electronic terminal

Info

Publication number: CN213938310U
Application number: CN202023255140.3U
Authority: CN
Inventors: 刘华伟; 孙立国
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-08-10
Anticipated expiration: 2030-12-29
Also published as: WO2022143027A1

Abstract

The utility model discloses a loudspeaker and an electronic terminal, wherein the loudspeaker comprises a shell component, a magnetic circuit system, a vibration system and a vibration system, and the shell component is provided with an accommodating cavity; the magnetic circuit system is arranged in the containing cavity; the vibration system comprises a vibrating diaphragm, a dome and a framework which are arranged opposite to the magnetic circuit system, the framework comprises a body part and at least one leg part, the body part is enclosed to form a through hole and is connected with the vibrating diaphragm, the leg part is provided with a straight section connected with the body part and an extending section which is bent downwards and extends from the straight section to one side of the through hole, the straight section extends towards the direction close to the magnetic circuit system along the horizontal direction, and at least one part of the straight section is contacted with the bottom of the vibrating diaphragm to support the vibrating diaphragm; one end of the balance component is connected with the shell component, and the other end of the balance component is connected with one end, far away from the straight section, of the extension section. The utility model aims at providing a can increase the speaker in vibration space down, effectively improve the play sound quality and the acoustic performance of speaker.

Description

Loudspeaker and electronic terminal

Technical Field

The utility model relates to an acoustoelectric product technical field, in particular to electron terminal of speaker and applied this speaker.

Background

A speaker is an important acoustic component of a portable electronic device, is used for converting an electric signal and a sound signal, and is an energy conversion device. With the miniaturization of electronic devices such as mobile phones, the size design of the speaker is more and more challenging. In the related art, the electric signal conducting support of the speaker structure is adhered to the bottom surface of the voice coil, so that the design of the lower vibration space of the speaker is limited, thereby affecting the acoustic performance of the speaker.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a speaker and electronic terminal aims at providing one kind and can increase the speaker of vibration space down, effectively improves the play tone quality and the acoustic performance of speaker.

In order to achieve the above object, the present invention provides a speaker, including:

the shell assembly is provided with a containing cavity;

the magnetic circuit system is arranged in the cavity;

the vibration system comprises a vibrating diaphragm, a dome and a framework, the vibrating diaphragm, the dome and the framework are arranged opposite to the magnetic circuit system, the framework comprises a body part and at least one leg part, the body part is enclosed to form a through hole and is connected with the vibrating diaphragm, the leg part is provided with a straight section connected with the body part and an extension section which is bent downwards and extends from one side of the straight section facing the through hole, the straight section extends towards the direction close to the magnetic circuit system along the horizontal direction, and at least one part of the straight section is in contact with the bottom of the vibrating diaphragm to support the vibrating diaphragm; and

and one end of the balance assembly is connected with the shell assembly, and the other end of the balance assembly is connected with one end, far away from the straight section, of the extension section.

In an embodiment, the frame further includes at least one connection portion disposed on a side of the body portion opposite to the diaphragm, and the connection portion and the extension portion are disposed at an interval;

the vibration system further comprises a voice coil, and the voice coil is connected with the connecting portion.

In one embodiment, the connecting portion is formed by bending a side of the body portion facing the through hole toward a side facing away from the diaphragm;

and/or, the connecting part includes a plurality of, a plurality of the connecting part interval and encircle the through-hole setting.

In an embodiment, the main body, the leg portion and the connecting portion are integrally formed by a stamping structure.

In an embodiment, the body portion and the straight section enclose to form a limiting groove communicated with the through hole, the ball top is provided with a first limiting portion corresponding to the limiting groove, and the first limiting portion is accommodated and limited in the limiting groove;

and/or one side of the body part, which is far away from the through hole, is provided with at least one notch, the ball top is provided with a second limiting part corresponding to the notch, and the second limiting part covers the notch and is connected with the vibrating diaphragm.

In one embodiment, the top surface of the dome is flush with the top surface of the body portion;

and/or the top surface of the first limiting part is flush with the notch of the limiting groove;

and/or the top surface of the second limiting part is flush with the top surface of the body part.

In an embodiment, the body portion is disposed in a rectangular ring shape, and the number of the leg portions includes four, and the four leg portions are respectively disposed at four corners of the body portion.

In one embodiment, one end of the extending section, which is far away from the straight section, is bent and extended towards one side, which is far away from the straight section, to form a bent section, and the bent section is connected with the balancing component.

In an embodiment, the magnetic circuit system includes a magnetic yoke, and a central magnetic circuit portion and a plurality of side magnetic circuit portions that are disposed on the magnetic yoke, a magnetic gap is formed between the central magnetic circuit portion and the plurality of side magnetic circuit portions, a gap is formed between each side magnetic circuit portion and the side wall of the cavity, an avoiding space is formed between two adjacent side magnetic circuit portions, the avoiding space is communicated with the magnetic gap and the gap, the balancing component is disposed corresponding to the gap, and one end of the extending section, which is far away from the straight section, extends into the avoiding space and is connected with the balancing component.

In one embodiment, the central magnetic circuit portion includes a central magnet and a central magnetic conductive plate, and the central magnet is sandwiched between the magnetic conductive yoke and the central magnetic conductive plate;

each limit magnetic circuit portion includes limit magnet and limit magnetic conduction board, limit magnet presss from both sides to be located the magnetic yoke with between the limit magnetic conduction board, limit magnetic conduction board pass through the canned paragraph with the lateral wall that holds the chamber is connected, and with the lateral wall that holds the chamber encloses to close and forms the clearance, the clearance orientation dodge the space and extend, and with dodge the space intercommunication.

In one embodiment, the balancing assembly comprises:

the centering support piece is arranged in the gap and is connected with the shell assembly; and

the auxiliary diaphragm, the relative both sides of auxiliary diaphragm are equipped with two straight portions that extend from back to back, one straight portion with the centering branch piece is connected, another straight portion wears to locate the clearance, and stretches into dodge the space with the extension section is kept away from the one end of straight section is connected.

In one embodiment, the shell assembly and the plurality of side magnetic conduction plates are of an integrally formed structure;

and/or the centering branch sheet is made of FPCB materials.

The utility model discloses still provide an electronic terminal, including equipment housing and the aforesaid speaker, equipment housing is equipped with the cavity, the speaker is located in the cavity.

The loudspeaker of the technical proposal of the utility model arranges the magnetic circuit system in the containing cavity of the shell component, so that the vibrating diaphragm of the vibration system is arranged opposite to the magnetic circuit system, the body part of the framework is connected with the vibrating diaphragm facing one side of the magnetic circuit system by arranging the framework, the foot part of the framework is arranged into a straight section connected with the body part and an extending section which is bent downwards and extends from the straight section facing one side of the through hole, so that the straight section extends towards the direction close to the magnetic circuit system along the horizontal direction, at least one part of the straight section is contacted with the bottom of the vibrating diaphragm to support the vibrating diaphragm, and the straight section is utilized to support and connect the dome, thereby realizing the support and connection of the dome and the vibrating diaphragm through the framework, effectively reducing the size of the dome and the thickness of the vibration system, and utilizing the extending section to be connected with the balance component, thereby connecting the vibrating diaphragm and the balance component into a whole, and improving the swinging condition of the vibration system, avoid the vibrating diaphragm to appear side to side in vibration process to influence the sound production effect, can adjust balance subassembly and vibration system's bonding position in a flexible way simultaneously, ensure sufficient lower vibration space, with the lower vibration space that realizes the increase speaker, effectively improve the play tone quality and the acoustic performance of speaker.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is an exploded schematic view of a speaker according to an embodiment of the present invention;

fig. 2 is an exploded view of a speaker according to another embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a speaker according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of another perspective of the speaker according to an embodiment of the present invention;

fig. 5 is a schematic structural view illustrating the connection between the frame and the dome according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of the connection between the frame and the dome in another embodiment of the present invention;

fig. 7 is a schematic structural diagram of a framework in an embodiment of the present invention;

fig. 8 is a schematic structural view of another view angle of the frame according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a frame according to another embodiment of the present invention;

fig. 10 is a schematic structural view of a dome according to an embodiment of the present invention;

fig. 11 is a schematic structural view of a dome according to another embodiment of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)	Reference numerals	Name (R)
						100	Loudspeaker	232	Edge magnetic conduction plate	323	Connecting part
1	Shell assembly	233	Fixed segment	33	Voice coil
						11	Outer casing	24	Magnetic gap	34	Ball top
12	Front cover	3	Vibration system	341	A first limit part
						13	Containing chamber	31	Vibrating diaphragm	342	Second limit part
14	Gap	32	Framework	4	Balancing assembly
						15	Avoidance space	321	Body part	41	Centering support plate
2	Magnetic circuit system	3211	Through hole	411	External fixing part
						21	Magnetic conductive yoke	3212	Limiting groove	412	Elastic part
22	Central magnetic circuit part	3213	Gap	413	Bonding pad
						221	Center magnet	322	Foot support part	42	Auxiliary vibrating diaphragm
222	Central magnetic conduction plate	3221	Straight section	421	Straight part
						23	Side magnetic circuit part	3222	Extension section
231	Edge magnet	3223	Bending section

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Also, the meaning of "and/or" and/or "appearing throughout is meant to encompass three scenarios, exemplified by" A and/or B "including scenario A, or scenario B, or scenarios where both A and B are satisfied.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Based on the above-mentioned considerations and problems, the present invention provides a loudspeaker 100. It is understood that the speaker 100 is applied to an electronic terminal, and the electronic terminal may be an electronic device, such as a mobile phone, a sound box, a computer, a headset, a watch, a television, or a tablet computer, and the like, and is not limited herein.

Referring to fig. 1 to 6, in an embodiment of the present invention, the speaker 100 includes a housing assembly 1, a magnetic circuit system 2, a vibration system 3, and a balance assembly 4, wherein the housing assembly 1 has a cavity 13; the magnetic circuit system 2 is arranged in the containing cavity 13; the vibration system 3 comprises a diaphragm 31, a dome 34 and a framework 32 which are arranged opposite to the magnetic circuit system 2, the framework 32 comprises a body 321 and at least one leg 322, the body 321 surrounds to form a through hole 3211 and is connected with the diaphragm 31, the leg 322 has a straight section 3221 connected with the body 321 and an extending section 3222 bent and extending downwards from one side of the straight section 3221 facing the through hole 3211, the straight section 3221 extends towards a direction close to the magnetic circuit system 2 along a horizontal direction, and at least one part of the straight section 3221 is in contact with the bottom of the diaphragm 31 to support the diaphragm 31; the balance assembly 4 has one end connected to the housing assembly 1 and the other end connected to the end of the extending section 3222 away from the straight section 3221.

It is understood that the housing assembly 1 is used for mounting, fixing and protecting the magnetic circuit system 2, the vibration system 3, the balance assembly 4 and other components of the loudspeaker 100, and the structure of the housing assembly 1 may have a housing, a casing, a mounting shell, a mounting framework and the like structure of the cavity 13, which is not limited herein.

In this embodiment, the magnetic circuit system 2 is disposed in the cavity 13 of the housing assembly 1, and the magnetic circuit system 2 and the sidewall of the cavity 13 are disposed at an interval. It can be understood that the housing assembly 1 is used for fixing and installing the magnetic circuit system 2, and the periphery of the housing assembly 1 is convexly provided with the supporting arms and is connected with the magnetic circuit system 2.

In an embodiment, as shown in fig. 1 to 4, the housing assembly 1 includes a housing 11 and a front cover 12, the housing 11 and the front cover 12 enclose a cavity 13 with an opening at one end, the diaphragm 31 is sandwiched between the front cover 12 and the housing 11, and the magnetic circuit system 2 covers the opening of the cavity 13. It will be appreciated that the magnetic circuit system 2 is disposed in the housing 11 adjacent to the opening of the cavity 13 and encloses a cavity, and the vibration system 3 and the balance assembly 4 are disposed between the front cover 12 and the magnetic circuit system 2.

It can be understood that, when the housing 11 of the housing assembly 1 is a metal member, the magnetic circuit system 2 and the housing 11 are fixed by adhesion. In other embodiments, when the housing 11 is formed by plastic injection molding, the magnetic-side conducting plate of the magnetic circuit system 2 is first injection-molded in the housing 11 as an insert, and then the other parts are bonded and fixed. In the present embodiment, the case assembly 1 is configured as a two-part structure of the front cover 12 and the housing 11, so that the magnetic circuit system 2 and the vibration system 3 are conveniently mounted, and the mounting convenience of the loudspeaker 100 is improved. In the present embodiment, a gap 14 is formed between the magnetic circuit system 2 and the sidewall of the cavity 13.

In this embodiment, the diaphragm 31 of the vibration system 3 includes an inner ring portion, a corrugated ring portion disposed around the inner ring portion, and a fixing portion disposed around the corrugated ring portion, and the fixing portion of the diaphragm 31 is interposed between the housing 11 and the front cover 12, so that the connection stability between the fixing portion and the housing 11 can be improved. Of course, in other embodiments, the fixing portion may also be formed by extending the outer side edge of the corrugated portion downward, so that the fixing portion of the diaphragm 31 is fixedly connected to the outer side wall of the housing 11, which not only can improve the connection stability between the fixing portion and the housing 11, improve the waterproof performance, but also is beneficial to increase the effective vibration area of the diaphragm 31, and is not limited herein.

It can be understood that the ring folding portion of the vibrating diaphragm 31 can be a convex ring structure, and can also be a concave ring structure, that is, the cross section of the ring folding portion is a semicircular structure which is convex upwards or a semicircular structure which is concave downwards, so that the vibrating diaphragm 31 can vibrate conveniently, and sound production is realized.

In this embodiment, by arranging the skeleton 32 as the body portion 321 and at least one leg portion 322, so that the body portion 321 encloses to form the through hole 3211 and is connected to the diaphragm 31, and arranging the leg portion 322 as the straight section 3221 connected to the body portion 321 and the extending section 3222 extending from the straight section 3221 to the through hole 3211 by bending downward, so that the straight section 3221 extends in the horizontal direction toward the direction close to the magnetic circuit system 2, and at least a part of the straight section 3221 contacts with the bottom of the diaphragm 31 to support the diaphragm 31, so that when the spherical top 34 covers the through hole 3211, and is connected to the straight section 3221, the skeleton 32 supports and connects the spherical top 34 and the diaphragm 31 through the straight section 3221 of the body portion 321 and the leg portion 322, the setting size of the spherical top 34 and the thickness of the vibration system 3 are effectively reduced, and the extending section 3222 of the leg portion 322 is connected to the balance assembly 4, thereby connect vibrating diaphragm 31 and balanced subassembly 4 as an organic whole to improve vibration system 3's the condition of swaing, avoid vibrating diaphragm 31 left and right rocking to appear in vibration process, thereby influence sound production effect, can adjust balanced subassembly 4 and vibration system 3's bonding position in a flexible way simultaneously, ensure sufficient lower vibration space, in order to realize the lower vibration space of increase speaker 100, effectively improve speaker 100's play tone quality and acoustic performance.

It will be appreciated that the framework 32 includes one or more leg portions 322. Optionally, the framework 32 includes four leg portions 322, and the four leg portions 322 are disposed at intervals and connected to the body portion 321. In this embodiment, as shown in fig. 7, the body portion 321 of the framework 32 encloses to form a through hole 3211, and the straight sections 3221 of the four leg portions 322 are connected to a side of the body portion 321 facing the through hole 3211, that is, the straight sections 3221 of the four leg portions 322 are located inside the body portion 321.

In this embodiment, as shown in fig. 9, the body portion 321 of the framework 32 and the straight sections 3221 of the four leg portions 322 are sequentially connected and enclose to form a through hole 3211, at this time, the straight sections 3221 of the four leg portions 322 are arranged at intervals, and two ends of each straight section 3221 are respectively connected to the body portion 321, that is, the body portion 321 is divided into four sections by the straight sections 3221 of the four leg portions 322. At this time, the extending sections 3222 of the four leg portions 322 are formed by bending and extending downward the straight section 3221 facing the side of the through hole 3211, that is, the extending sections 3222 are formed by bending downward the inner side of the straight section 3221, so that the four extending sections 3222 are arranged at intervals and surround the through hole 3211, which is not limited herein.

The loudspeaker 100 of the present invention has the magnetic circuit system 2 disposed in the accommodating cavity 13 of the housing assembly 1, so that the vibrating diaphragm 31 of the vibration system 3 is disposed opposite to the magnetic circuit system 2, by disposing the framework 32, the body portion 321 of the framework 32 is connected to the vibrating diaphragm 31 facing to one side of the magnetic circuit system 2, and the leg portion 322 of the framework 32 is disposed as the straight portion 3221 connected to the body portion 321 and the extending portion 3222 bent and extending downward from the straight portion 3221 facing to one side of the through hole, so that the straight portion 3221 extends in the horizontal direction toward the direction close to the magnetic circuit system 2, and at least a portion of the straight portion 3221 contacts with the bottom of the vibrating diaphragm 31 to support the vibrating diaphragm 31, and the straight portion 3221 is utilized to support and connect the dome 34, thereby realizing the support and connection of the dome 34 and the vibrating diaphragm 31 through the framework 32, effectively reducing the size of the dome 34 and the thickness of the vibration system 3, and utilizing the extending portion 3222 to connect with the balance assembly 4, thereby connect vibrating diaphragm 31 and balanced subassembly 4 as an organic whole to improve vibration system 3's the condition of swaing, avoid vibrating diaphragm 31 left and right rocking to appear in vibration process, thereby influence sound production effect, can adjust balanced subassembly 4 and vibration system 3's bonding position in a flexible way simultaneously, ensure sufficient lower vibration space, in order to realize the lower vibration space of increase speaker 100, effectively improve speaker 100's play tone quality and acoustic performance.

In an embodiment, as shown in fig. 3, 4, and 7 to 9, the framework 32 further includes at least one connection portion 323 disposed on a side of the body portion 321 opposite to the diaphragm 31, wherein the connection portion 323 and the extension 3222 are disposed at an interval; the vibration system 3 further includes a voice coil connected to the connection portion 323.

In this embodiment, the magnetic circuit system 2 is provided with the magnetic gap 24, the vibration system 3 further includes a voice coil 33 suspended in the magnetic gap 24, so that the voice coil 33 is conducted with an external circuit, after an alternating current is introduced into the voice coil 33, the voice coil 33 is driven to vibrate up and down under the action of the magnetic field force of the magnetic circuit system 2, the voice coil 33 drives the diaphragm 31 and the ball top 34 of the vibration system 3 through the framework 32 to realize vibration and sound, and further, mechanical energy is converted into sound energy. That is, after the voice coil 33 disposed in the magnetic gap 24 receives an externally varying alternating current signal, the voice coil is driven by the magnetic field force of the magnetic circuit system 2 to perform a reciprocating motion of cutting the magnetic lines of force, so as to drive the diaphragm 31 and the dome 34 of the vibration system 3 to vibrate and generate sound.

It can be understood that, one side of the framework 32 departing from the diaphragm 31 is provided with the extending section 3222 and the connecting part 323, so that the framework 32 is connected with the voice coil 33 through the connecting part 323, so that the diaphragm 31 is connected with the voice coil 33 through the framework 32, and the extending section 3222 of the framework 32 is connected with the balance assembly 4, so that the connection position of the balance assembly 4 and the voice coil 33 can be flexibly adjusted, a sufficient lower vibration space is ensured below the voice coil 33, and the sound output quality and the acoustic performance of the loudspeaker are effectively improved.

In this embodiment, by providing the bobbin 32, the body 321 of the bobbin 32 is connected to the side of the diaphragm 31 facing the magnetic circuit system 2, and the extension 3222 and the connection portion 323 are disposed at an interval on the side of the bobbin 32 facing away from the diaphragm 31, the connection portion 323 of the bobbin 32 is connected to the voice coil 33, and the extension 3222 is connected to the balance assembly 4, so that an electrical signal is conducted to the balance assembly 4 through the connection portion 323 and the extension portion 3222 of the bobbin 32, thereby flexibly adjusting the bonding position between the balance assembly 4 and the voice coil 33, ensuring a sufficient lower vibration space, increasing the lower vibration space of the speaker 100, and effectively improving the sound quality and the acoustic performance of the speaker 100.

It can be understood that the skeleton 32 can be connected to the diaphragm 31 through the body 321, and can also be connected to the dome 34 through the straight section 3221 of the leg 322, so as to ensure the structural strength of the diaphragm 31, ensure the stability of the diaphragm 31, and reduce the size of the dome 34 and the thickness of the vibration system 3.

In this embodiment, the extending section 3222 and the connecting section 323 are disposed on a side of the body 321 opposite to the dome 34 and the diaphragm 31, such that the bobbin 32 is connected to the voice coil 33 through the connecting section 323, and is connected to the balance assembly 4 through the extending section 3222, so as to conduct an electrical signal of the voice coil 33 to the balance assembly 4 through the bobbin 32, avoid the connection between the balance assembly 4 and the lower portion of the voice coil 33, and thus limit a vibration space below the voice coil 33. Alternatively, the connecting portion 323 is formed by bending a side of the body portion 321 facing the through hole 3211 toward a side facing away from the diaphragm 31.

In an embodiment, as shown in fig. 7 to 9, the connecting portion 323 includes a plurality of connecting portions 323, and the plurality of connecting portions 323 are spaced and disposed around the through hole 3211. It can be understood that, by providing a plurality of connection portions 323 at the bobbin 32, the bobbin 32 is connected to the voice coil 33 through the plurality of connection portions 323, so as to improve connection stability. Optionally, the framework 32 includes four connecting portions 323, which is not limited herein.

In an embodiment, as shown in fig. 7 to 9, the main body 321, the leg portion 322 and the connecting portion 323 are integrally formed by stamping. As will be appreciated, such an arrangement is advantageous in that it improves the structural strength of the armature 32; on the other hand, it is advantageous to simplify the processing steps of the bobbin 32. Optionally, the metal material of the bobbin 32 is one of aluminum, aluminum-magnesium alloy, aluminum-lithium alloy, and titanium alloy, so as to effectively conduct the electrical signal of the voice coil 33 to the balance assembly 4.

Of course, in other embodiments, the bobbin 32 may also be made of rigid plastic, carbon fiber, or the like, so that a conductive layer may be disposed inside the bobbin 32, that is, the conductive layer is wrapped by the rigid plastic, the carbon fiber, or the like, and is electrically connected to the voice coil 33 and the balance assembly 4, so as to implement electrical signal transmission, which is not limited herein.

In an embodiment, as shown in fig. 1, fig. 2, fig. 5, fig. 6, fig. 7, and fig. 9 to fig. 11, the body portion 321 and the straight portion 3221 enclose to form a limiting groove 3212 communicating with the through hole 3211, the ball top 34 is provided with a first limiting portion 341 corresponding to the limiting groove 3212, and the first limiting portion 341 is received and limited in the limiting groove 3212.

In this embodiment, the body portion 321 of the framework 32 is configured to be an annular structure, so that the body portion 321 encloses to form the through hole 3211, and the spherical cap 34 covers the through hole 3211, so as to reinforce the framework, reduce the material consumption of the framework 32, and reduce the cost.

It can be understood that, by forming the limiting groove 3212 on the side of the body portion 321 facing the diaphragm 31 and providing the first limiting portion 341 on the ball top 34 corresponding to the limiting groove 3212, when the ball top 34 covers the through hole 3211, the first limiting portion 341 is accommodated and limited in the limiting groove 3212, so as to improve the connection strength and stability between the framework 32 and the ball top 34. Optionally, the body 321 and the four straight sections 3221 of the four leg portions 322 enclose to form four limiting grooves 3212, and the ball top 34 is provided with four first limiting portions 341, which is not limited herein.

In one embodiment, as shown in fig. 5 and 6, the top surface of the ball top 34 is flush with the top surface of the body 321. The top surface of the first position-limiting portion 341 is flush with the notch of the position-limiting groove 3212. It can be understood that, the arrangement can ensure that the body 321 of the framework 32 is located on the same plane after being connected with the dome 34, so that the matching structure is more compact, thereby avoiding the occurrence of height difference, avoiding the increase of extra thickness in the inner ring part of the diaphragm 31, and avoiding the influence on the acoustic performance of the loudspeaker 100 caused by the vibration performance of the diaphragm 31 when the body 321 of the framework 32 drives the dome 34 to vibrate.

In the present embodiment, the framework 32 includes a plurality of leg portions 322, such that the plurality of leg portions 322 have a plurality of extending sections 3222 bent downward. Optionally, each extending section 3222 is formed by extending the bottom wall of each limiting groove 3212 downward toward a side away from the first limiting portion 341, each connecting portion 323 is formed by extending the inner wall of the body portion 321 adjacent to the through hole 3211 downward toward a side away from the ball top 34, and each connecting portion 323 is located between two adjacent extending sections 3222.

In the present embodiment, the plurality of extending sections 3222 and the plurality of connecting portions 323 are disposed on the bobbin 32, so that the bobbin 32 is connected to the voice coil 33 through the plurality of connecting portions 323, thereby improving the connection stability. The skeleton 32 is connected to the balance assembly 4 through a plurality of extending sections 3222, so as to improve connection stability and ensure smooth conduction of electrical signals. Optionally, the framework 32 includes four extending segments 3222 and four connecting portions 323.

In another embodiment, as shown in fig. 1, fig. 5, fig. 7, fig. 8 and fig. 10, at least one notch 3213 is disposed on a side of the main body 321 away from the through hole 3211, a second position-limiting portion 342 is disposed on the ball top 34 corresponding to the notch 3213, and the second position-limiting portion 342 covers the notch 3213 and is connected to the diaphragm 31.

It can be understood that, by providing the notch 3213 on the body portion 321 of the framework 32 and providing the second position-limiting portion 342 on the globe top 34, when the globe top 34 covers the through hole 3211 of the framework 32, the second position-limiting portion 342 covers the notch 3213 and is connected to the diaphragm 31, so as to further improve the connection stability between the globe top 34 and the diaphragm 31. Optionally, the first position-limiting portion 341 of the dome 34 is fixedly connected with the position-limiting groove 3212 of the framework 32 through an adhesive, and the dome 34 is fixedly connected with the inner ring portion of the diaphragm 31 through an adhesive.

Optionally, the body portion 321 of the framework 32 is provided with a plurality of gaps 3213, and the plurality of gaps 3213 are spaced along a side of the body portion 321 away from the through hole 3211, that is, the plurality of gaps 3213 are spaced along an outer edge of the body portion 321. In this embodiment, as shown in fig. 5, 7, 8 and 10, the main body 321 of the frame 32 is provided with four notches 3213, the globe top 34 is provided with four second limiting portions 342, each notch 3213 is disposed corresponding to one connecting portion 323, and each connecting portion 323 is disposed between two adjacent extending segments 3222 at intervals.

In an embodiment, as shown in fig. 5, the top surface of the second position-limiting portion 342 is flush with the top surface of the main body 321. It can be understood that, by such an arrangement, the body portion 321 and the dome 34 are located on the same plane after being connected, so that the height difference is avoided, the inner ring portion of the diaphragm 31 is not increased by extra thickness, and the influence on the acoustic performance of the speaker 100 caused by the vibration performance of the diaphragm 31 when the body portion 321 of the framework 32 drives the dome 34 to vibrate is avoided.

In one embodiment, as shown in fig. 1, 2, 7, 8 and 9, the body portion 321 is a rectangular ring. Optionally, the leg portions 322 include four, and the four leg portions 322 are respectively disposed at four corners of the body portion 321.

In an embodiment, as shown in fig. 1, fig. 2, and fig. 5 to fig. 9, an end of the extending section 3222 away from the straight section 3221 is bent and extended toward a side away from the straight section 3221 to form a bent section 3223, and the bent section 3223 is connected to the balancing assembly 4.

As can be understood, by providing the bending section 3223, the bending section 3223 is formed by bending an end of the extending section 3222 away from the straight section 3221, on one hand, a pointed structure at an end of the extending section 3222 away from the straight section 3221 is avoided, so as to improve stability in assembling and connecting with other structures; on the other hand, the sharp structure at the end of the extending section 3222 away from the straight section 3221 is also prevented from scratching or affecting the assembly of other structures, etc.

In this embodiment, the connection between the extending section 3222 and the straight section 3221 is arranged in a circular arc transition manner, and it can be understood that such arrangement is favorable for improving the connection strength between the straight section 3221 and the extending section 3222 of the framework 32; on the other hand, a sharp corner is avoided at the connection between the straight section 3221 and the extending section 3222 of the skeleton 32, thereby scratching the diaphragm 31 or affecting the connection with the diaphragm 31.

In an embodiment, as shown in fig. 1 to 4, the magnetic circuit system 2 includes a magnetic yoke 21, and a central magnetic circuit portion 22 and a plurality of side magnetic circuit portions 23 disposed on the magnetic yoke 21, a magnetic gap 24 is formed between the central magnetic circuit portion 22 and the plurality of side magnetic circuit portions 23, a gap 14 is formed between each side magnetic circuit portion 23 and a sidewall of the receiving cavity 13, an avoiding space 15 is formed between two adjacent side magnetic circuit portions 23, the avoiding space 15 communicates with the magnetic gap 24 and the gap 14, the balancing component 4 is disposed corresponding to the gap 14, and an end of the extending section 3222 away from the straight section 3221 extends into the avoiding space 15 and is connected with the balancing component 4.

In the present embodiment, the magnetic yoke 21 is fixed to one end of the housing 11 of the casing assembly 1 away from the front cover 12, the central magnetic circuit portion 22 and the side magnetic circuit portion 23 are disposed on one side of the magnetic yoke 21 facing the dome 34, and the side magnetic circuit portion 23 is disposed around the central magnetic circuit portion 22 and forms a magnetic gap 24 with the central magnetic circuit portion 22, so as to facilitate the suspension of the voice coil 33 in the magnetic gap 24.

It can be understood that, by providing a plurality of side magnetic path portions 23, a gap 14 is formed between each side magnetic path portion 23 and the sidewall of the receiving cavity 13, so as to facilitate the installation of the balancing assembly 3 in the gap 14. An avoidance space 15 communicating the magnetic gap 24 and the gap 14 is formed between two adjacent side magnetic circuit portions 23, so that one end of the extending section 3222 away from the straight section 3221 of the framework 32 can be conveniently extended into the avoidance space 15 and connected with the balance assembly 4.

In one embodiment, as shown in fig. 3 and 4, the central magnetic circuit portion 22 includes a central magnet 221 and a central magnetic conductive plate 222, wherein the central magnet 221 is sandwiched between the magnetic conductive yoke 21 and the central magnetic conductive plate 222; each side magnetic circuit portion 23 includes a side magnet 231 and a side magnetic conductive plate 232, the side magnet 231 is sandwiched between the magnetic conductive yoke 21 and the side magnetic conductive plate 232, the side magnetic conductive plate 232 is connected with the side wall of the accommodating cavity 13 through a fixing section 233 and encloses with the side wall of the accommodating cavity 13 to form a gap 14, and the gap 14 extends toward the avoiding space 15 and is communicated with the avoiding space 15.

In this embodiment, the central magnet 221 and the central magnetic plate 222 have the same structural contour, and the central magnet 221 and the central magnetic plate 222 may be selected to have a plate-like structure. The edge magnet 231 and the edge magnetic conductive plate 232 have the same structural contour, and the edge magnet 231 and the edge magnetic conductive plate 232 can be selected to have a ring structure.

As shown in fig. 1, 2 and 4, the side magnetic conductive plate 232 is connected to the side wall of the cavity 13 through the fixing section 233, and forms a gap 14 with the side wall of the cavity 13, and the gap 14 extends toward the avoiding space 15 and is communicated with the avoiding space 15, so that the processing process of the side magnetic conductive plate 232 and the housing 11 is simplified. In this embodiment, the casing 11 and the side magnetic conductive plate 232 are made of metal materials, so as to improve the heat conduction and dissipation effects. Optionally, the casing 11 of the casing assembly 1 and the plurality of side magnetic conductive plates 232 are of an integrally molded structure.

In one embodiment, as shown in fig. 1 to 4, the balance assembly 4 includes a centering disk 41 and an auxiliary diaphragm 42, wherein the centering disk 41 is disposed in the gap 14 and connected to the housing assembly 1; two straight portions 421 deviating from each other and extending are disposed on two opposite sides of the auxiliary diaphragm 42, one straight portion 421 is connected to the centering branch 41, and the other straight portion 421 penetrates through the gap 14 and extends into the avoiding space 15 to be connected to one end of the extending section 3222 far away from the straight section 3221.

In this embodiment, the centering disk 41 and the auxiliary diaphragm 42 of the balance assembly 4 are disposed in the cavity 13 of the housing assembly 1, are located in the gap 14 between the magnetic circuit system 2 and the sidewall of the cavity 13, and are disposed opposite to the diaphragm 31. It can be understood that the centering disk 41 includes an outer fixing portion 411 and an elastic portion 412 connected to the outer fixing portion 411, and the outer fixing portion 411 of the centering disk 41 is interposed between the housing 11 and the magnetic yoke 21, so as to improve the mounting stability of the centering disk 41. The elastic portion 412 of the centralizer 41 is connected to the end of the extension 3222 located within the gap 14 to further improve the connection stability of the framework 32.

It can be understood that two opposite sides of the auxiliary diaphragm 42 are provided with two flat portions 421 extending away from each other, that is, the auxiliary diaphragm 42 includes a ring folding segment and two flat portions 421 integrally provided with the ring folding segment, and the two flat portions 421 are provided on two opposite sides of the ring folding segment. A flat portion 421 of the auxiliary diaphragm 42 is connected to the outer fixing portion 411 of the damper 41 and interposed between the outer fixing portion 411 and the housing 11, thereby improving the mounting stability of the auxiliary diaphragm 42. The other straight portion 421 of the auxiliary diaphragm 42 is located in the gap 14 and connected to one end of the extending section 3222 away from the body portion 321, so as to further improve the connection stability of the framework 32.

In this embodiment, the balance assembly 4 composed of the damper 41 and the auxiliary diaphragm 42 is disposed in the cavity 13, so that the vibration of the diaphragm 31 is transmitted to the auxiliary diaphragm 42 and the elastic portion 412 of the damper 41 by the framework 32, the vibration condition of the vibration system 3 is improved by the auxiliary diaphragm 42 and the elastic portion 412, and the diaphragm 31 is prevented from swinging left and right in the vibration process, thereby affecting the sound production effect.

Alternatively, the damper 41 is made of FPCB, that is, the outer fixing portion 411 and the elastic portion 412 of the damper 41 are made of FPCB.

In one embodiment, as shown in fig. 1 to 4, the centering fins 41 include two centering fins 41, and the two centering fins 41 are symmetrically disposed; each of the headpieces 41 includes an outer fixing portion 411 connected to the housing assembly 1 and an elastic portion 412 connected to the outer fixing portion 411, both ends of the elastic portion 412 extend into the avoiding space 15 along the gap 14, and a pad 413 is provided, and the extending section 3222 and the flat portion 421 are connected to the pad 413.

It can be understood that, by providing the bonding pad 413 at the end of the elastic portion 412 extending into the avoiding space 15 along the gap 14, the end of the extending portion 3222 away from the main body portion 321 and the flat portion 421 are connected to the bonding pad 413, so as to improve the connection stability, and at the same time, the electrical signal conduction with the voice coil 33 is realized by the framework 32 through the bonding pad 413.

In this embodiment, the speaker 100 includes two opposite long sides and two opposite short sides, and the two centring disk 41 is symmetrically disposed corresponding to the two short sides of the speaker 100. The elastic portion 412 of each of the stabilizers 41 extends along the short side into the escape space 15.

In one embodiment, as shown in fig. 1 and fig. 2, the number of the auxiliary diaphragms 42 is four, and each auxiliary diaphragm 42 is disposed corresponding to one avoidance space 15; a straight portion 421 of each auxiliary diaphragm 42 is sandwiched between the outer fixing portion 411 and the housing assembly 1, and another straight portion 421 is sandwiched between the pad 413 and the extending section 3222.

In this embodiment, the speaker 100 is a rectangular ring, and the avoidance space 15 is formed between two adjacent side magnetic circuit portions 23 at intervals, so that the avoidance space 15 is disposed corresponding to four corner positions of the speaker 100, and thus the four auxiliary diaphragms 42 are disposed corresponding to four corner positions of the speaker 100, i.e., each auxiliary diaphragm 42 is disposed corresponding to one avoidance space 15.

The utility model discloses a vibration system 3 of speaker 100 comprises vibrating diaphragm 31, dome 34, skeleton 32 and voice coil 33, dome 34, skeleton 32 bond with vibrating diaphragm 31 respectively, skeleton 32 comprises body portion 321, foot portion 322 and connecting portion 323, top vibrating diaphragm 31 and bottom balance assembly 4's centering branch piece 41 and supplementary vibrating diaphragm 42 are connected to body portion 321 of skeleton 32 and the bending section 3223 of foot portion 322.

It can be understood that the body 321 of the framework 32 is connected to the diaphragm 31 in combination with the dome 34, so as to effectively enhance the strength of the central radiation area of the diaphragm 31, and make the high-frequency performance of the loudspeaker 100 better. Meanwhile, the body 321 of the bobbin 32, the extension 3222 of the leg 322 and the connecting portion 323 enable the bobbin 32 to achieve the function of fixing the voice coil 33 and the diaphragm 31 and the function of connecting the voice coil 33 and the centering disk 41 and the auxiliary diaphragm 42 of the balance assembly 4.

In the present embodiment, a relief space 15 is left between two adjacent side magnetic circuit portions 23 of the magnetic circuit system 2 for the centering disk 41 and the auxiliary diaphragm 42 of the balance assembly 4. The extending section 3222 and the bending section 3223 of the framework 32 are inserted into the avoiding space 15 between the side magnetic circuit portion 23 and the housing 11. The bending section 3223 of the framework 32 is fixedly connected with the inner bonding areas of the centering branch 41 and the auxiliary diaphragm 42, so that the framework 32 connects the upper vibration system and the lower vibration system into a whole.

It can be understood that the centering disk 41 and the auxiliary diaphragm 42 of the balance assembly 4 are distributed on the short side of the loudspeaker 100, so that the vibration system 3 is better inhibited from generating the wobble polarization. Meanwhile, the framework 32, the centering disk 41 and the auxiliary vibrating diaphragm 42 are located on the outer side of the magnetic circuit system 2, so that the space of the magnetic circuit system 2 is less affected, and the magnetic circuit performance is easier to use and fully utilized, so that the vibrating diaphragm 31 is prevented from swinging and polarizing, and the framework 32 and the voice coil 32 can be connected in a conductive manner.

The utility model discloses still provide an electronic terminal, this electronic terminal include equipment casing and speaker 100, and equipment casing is equipped with the cavity, and speaker 100 locates in the cavity. The specific structure of the speaker 100 refers to the foregoing embodiments, and since the electronic terminal adopts all the technical solutions of all the foregoing embodiments, at least all the beneficial effects brought by the technical solutions of the foregoing embodiments are achieved, and no further description is given here.

It is understood that the electronic terminal may be an electronic device, such as a mobile phone, a sound box, a computer, a headset, a watch, a television, or a tablet computer, and is not limited herein.

The above is only the optional embodiment of the present invention, and not therefore the limit to the patent scope of the present invention, all the concepts of the present invention utilize the equivalent structure transformation of the content of the specification and the attached drawings, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A loudspeaker, characterized in that the loudspeaker comprises:

the shell assembly is provided with a containing cavity;

the magnetic circuit system is arranged in the cavity;

2. The loudspeaker of claim 1, wherein the frame further comprises at least one connecting portion disposed on a side of the body portion facing away from the diaphragm, the connecting portion being spaced apart from the extension;

3. The loudspeaker according to claim 2, wherein the connecting portion is formed by bending a side of the body portion facing the through hole toward a side facing away from the diaphragm;

4. The speaker of claim 2, wherein the body portion, the leg portion, and the connecting portion are of an integrally stamped and formed sheet metal construction.

5. The loudspeaker of claim 1, wherein the body portion and the straight section enclose a limiting groove communicating with the through hole, the dome is provided with a first limiting portion corresponding to the limiting groove, and the first limiting portion is accommodated and limited in the limiting groove;

6. The speaker of claim 5 wherein a top surface of said dome is flush with a top surface of said body portion;

7. The loudspeaker according to any one of claims 1 to 6, wherein the body portion is provided in the form of a rectangular ring, and the leg portions comprise four, four of the leg portions being provided at four corners of the body portion, respectively.

8. The loudspeaker according to any one of claims 1 to 6, wherein an end of the extension section remote from the straight section is bent and extended towards a side remote from the straight section to form a bent section, and the bent section is connected with the balance assembly.

9. The loudspeaker according to any one of claims 1 to 6, wherein the magnetic circuit system comprises a magnetic yoke, and a central magnetic circuit portion and a plurality of side magnetic circuit portions which are arranged on the magnetic yoke, a magnetic gap is formed between the central magnetic circuit portion and the plurality of side magnetic circuit portions, a gap is formed between each side magnetic circuit portion and a side wall of the cavity, an avoiding space is formed between two adjacent side magnetic circuit portions, the avoiding space communicates with the magnetic gap and the gap, the balance assembly is arranged corresponding to the gap, and one end of the extending section, which is far away from the straight section, extends into the avoiding space and is connected with the balance assembly.

10. The loudspeaker of claim 9, wherein said central magnetic circuit portion includes a central magnet and a central magnetic conductive plate, said central magnet being sandwiched between said magnetic conductive yoke and said central magnetic conductive plate;

11. The loudspeaker of claim 10, wherein the balance assembly comprises:

12. The loudspeaker of claim 11, wherein said housing assembly is of unitary construction with said plurality of side flux plates;

and/or the centering branch sheet is made of FPCB materials.

13. An electronic terminal, comprising a device housing and a loudspeaker according to any of claims 1 to 12, the device housing being provided with a cavity, the loudspeaker being provided in the cavity.