CN217509028U - Electronic equipment, earphone and speaker thereof - Google Patents

Abstract

The application provides an electronic device, an earphone and a loudspeaker thereof; the loudspeaker comprises a shell, a magnetic component and a vibration component; the vibration component comprises a coil and a vibrating diaphragm; the coil is connected with the middle part of the vibrating diaphragm; the included angle between the extension plane where the coil is located and the extension plane where the diaphragm is located is 90 +/-5 degrees; wherein, the diaphragm is a plane structure; the magnetic assembly and the vibrating diaphragm are respectively connected with the shell, and the coil is arranged in a magnetic field of the magnetic assembly and can be driven by the magnetic field to vibrate along an extending plane where the annular structure is located when the coil is electrified, so that the vibrating diaphragm is driven to vibrate. This speaker is through the vibrating diaphragm middle part position with coil and planar structure perpendicular or be close perpendicular setting, and the voice coil loudspeaker voice coil can directly drive vibrating diaphragm central point and put the vibration, reduces transmission loss, avoids rocking, cuts apart harmful vibration modes such as vibration, has high frequency vibration response and follows soon, and the frequency width of audio frequency can greatly be widened to the characteristics that high frequency extends, promotes tone quality for the high pitch of speaker is fine and smooth and bright.

Description

Electronic equipment, earphone and speaker thereof

Technical Field

The utility model relates to a technical field of speaker structure specifically is to relate to an electronic equipment, earphone and speaker thereof.

Background

The loudspeaker in the conventional technology is generally characterized in that an annular voice coil and a vibrating diaphragm are bonded in a coplanar manner and are assembled concentrically, a direct driving force receiving surface is an annular belt, a coil wound by a lead is positioned in a magnetic field formed by a magnet, and an audio current is driven by the magnetic field through the coil to vibrate to drive the vibrating diaphragm to vibrate so as to push air around the vibrating diaphragm to vibrate to generate sound. However, the conventional speaker has problems of poor high frequency sound effect and high degree of delay.

SUMMERY OF THE UTILITY MODEL

A first aspect of an embodiment of the present application provides a loudspeaker, which includes a housing, a magnetic component, and a vibration component; the vibration component comprises a coil and a vibrating diaphragm; the coil is connected with the middle part of the vibrating diaphragm; an included angle between an extension plane where the coil is located and an extension plane where the diaphragm is located is 90 +/-5 degrees; wherein the diaphragm is a planar structure; the magnetic assembly and the vibrating diaphragm are respectively connected with the shell, the coil is arranged in a magnetic field of the magnetic assembly and can be driven by the magnetic field to vibrate along an extending plane where the annular structure is located when the coil is electrified, and then the vibrating diaphragm is driven to vibrate.

In a second aspect, an embodiment of the present application provides an earphone, where the earphone includes a housing, a main control circuit board, and the speaker described in any one of the above embodiments, where an accommodating cavity is formed in the housing, and a first sound outlet hole that communicates the accommodating cavity with an external space of the accommodating cavity is formed in a surface of the housing; the main control circuit board and the loudspeaker are arranged in the accommodating cavity, the main control circuit board is electrically connected with the loudspeaker and is used for controlling the loudspeaker, and the loudspeaker corresponds to the first sound outlet.

In addition, this application embodiment provides an electronic equipment again, electronic equipment includes control circuit board and the speaker of any one of the above-mentioned embodiments, control circuit board with the speaker electricity is connected, and be used for controlling the operating condition of speaker.

The embodiment of the application provides a loudspeaker, through with coil (the extension plane at annular structure place) with planar structure's vibrating diaphragm (the extension plane) middle part position perpendicular or be close perpendicular setting, the voice coil loudspeaker voice coil can the vibration of direct drive vibrating diaphragm central point, reduce transmission loss, avoid swaying, cut apart harmful vibration modes such as vibration, it is fast to have high frequency vibration response to follow, the good characteristics of high frequency extension, can greatly widen the frequency width of audio frequency, promote tone quality, make the high pitch of loudspeaker fine and smooth and bright.

Drawings

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

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the loudspeaker of the present application;

fig. 2 is a schematic diagram of a split structure of the loudspeaker in the embodiment of fig. 1;

FIG. 3 is a schematic cross-sectional view of the speaker of FIG. 1 at A-A;

FIG. 4 is a schematic structural diagram of the vibration assembly of the embodiment of FIG. 2;

FIG. 5 is a schematic structural diagram of another view of the vibration assembly in the embodiment of FIG. 4;

FIG. 6 is a schematic structural diagram of another embodiment of a diaphragm according to the present application;

FIG. 7 is a schematic structural diagram of an embodiment of the coil of the present application;

FIG. 8 is a schematic diagram of a partial structure of the speaker in the embodiment of FIG. 1;

FIG. 9 is a graph showing a comparison between the high-frequency signal response of the speaker structure in the embodiment of the present application and that of the speaker structure in the conventional art;

FIG. 10 is a schematic structural diagram of an embodiment of an electronic device of the present application;

FIG. 11 is a schematic cross-sectional view of the electronic device in the embodiment of FIG. 10 at B-B;

FIG. 12 is a block diagram illustrating the structural components of an embodiment of the electronic device of the present application;

fig. 13 is a schematic diagram of the overall structure of an embodiment of the earphone of the present application;

fig. 14 is a schematic diagram of the earphone in fig. 13 with a disassembled structure.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be noted that the following examples are only for illustrating the present invention, but do not limit the scope of the present invention. Similarly, the following embodiments are only some but not all embodiments of the present invention, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

As used herein, an "electronic device" (or simply "terminal") includes, but is not limited to, an apparatus that is configured to receive/transmit communication signals via a wireline connection, such as via a public-switched telephone network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A cellular phone is an electronic device equipped with a cellular communication module.

Referring to fig. 1 and fig. 2 together, fig. 1 is a schematic overall structure diagram of an embodiment of a speaker of the present application, and fig. 2 is a schematic exploded structure diagram of the speaker in the embodiment of fig. 1; it should be noted that the speaker in the embodiments of the present application may be used in an electronic device, and the electronic device may include a headset, a mobile phone, a tablet computer, a notebook computer, a wearable device, a television, and the like. The speaker 10 includes, but is not limited to, the following structures: a housing 100, a magnetic assembly 200, and a vibration assembly 300. It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the embodiments of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or may alternatively include other steps or elements inherent to such process, method, article, or apparatus.

Specifically, referring to fig. 3, fig. 3 is a schematic cross-sectional view of the speaker at a-a in the embodiment of fig. 1, in which the housing 100 includes a main housing 110 and a cover plate 120, and the cover plate 120 is disposed at an open position at one end of the main housing 110. The cover plate 120 is provided with a second sound outlet 121, and the second sound outlet 121 is disposed corresponding to the vibration assembly 300. The magnetic component 200 and the vibration component 300 are respectively connected to the housing 100, and the vibration component can vibrate the membrane to generate sound under the driving of the magnetic field of the magnetic component 200.

Optionally, referring to fig. 4 together, fig. 4 is a schematic structural diagram of the vibration assembly in the embodiment of fig. 2, the vibration assembly 300 in this embodiment includes a coil 310 and a diaphragm 320 in a planar structure, the diaphragm is in a planar sheet structure, and the edge of the diaphragm has no corrugated rim. The coil 310 is fixedly connected to the middle of the diaphragm 320, where the middle is the position where the coil 310 is close to the geometric center of the diaphragm, or the geometric center of the coil 310 overlaps with the geometric center of the diaphragm. In the illustration of this embodiment, only a circular diaphragm structure is taken as an example for description, and in some other embodiments, the diaphragm may also be in a rectangular structure, a rounded rectangle structure, an oval structure, or an irregular structure, which is not specifically limited herein.

Alternatively, with reference to fig. 4, the coil in the present embodiment is a flat structure, that is, the width k of the coil in the extending plane is greater than the thickness h of the coil, and two side surfaces (the other side surface can refer to fig. 3, which is also a planar structure) of the coil in the thickness direction are both planar.

Optionally, the coil 310 in the embodiment of the present application is of a ring structure, please refer to fig. 5, fig. 5 is a schematic structural diagram of another view angle of the vibration assembly in the embodiment of fig. 4, an included angle a between an extension plane (a reference Z plane in the figure) where the ring structure of the coil 310 is located and an extension plane (a reference X plane in the figure) of the diaphragm 320 is 90 ± 5 degrees; alternatively, the extension plane Z of the loop structure of the coil 310 is perpendicular or nearly perpendicular to the extension plane X of the diaphragm 320.

Alternatively, the material of the diaphragm 320 may be a polyester material, a metal material, or a composite material, such as a fiber composite material or a resin-coated composite material. In addition, please refer to fig. 6, fig. 6 is a schematic structural diagram of another embodiment of the vibrating diaphragm of the present application, a positioning groove 321 is disposed on the vibrating diaphragm 320 in the present embodiment, and the coil 310 may be matched with the positioning groove 321, so that the position of the coil 310 on the vibrating diaphragm 320 is more accurate, and the consistency of the glue path for bonding is better.

Optionally, referring to fig. 7 together, fig. 7 is a schematic structural diagram of an embodiment of the coil of the present application, in which the coil 310 in the present embodiment includes a first straight section 311, a first arc-shaped section 312, a second straight section 313 and a second arc-shaped section 314 that are sequentially connected end to end; the first straight section 311 and the second straight section 313 are arranged in parallel and at intervals; the coil 310 is integrally formed in a racetrack shape, and it should be noted herein that the first arc-shaped segment 312 and the second arc-shaped segment 314 are not limited to circular arc shapes, but may have a structure in which a straight portion and a circular arc portion are combined such that the coil 310 is integrally formed in a rounded rectangular structure. In this embodiment, the first straight section 311 of the coil 310 is connected to the diaphragm 320, and the first straight section 311 is parallel to the extension plane X of the diaphragm 320. It should be noted that the terms "first", "second" and "third" in the embodiments of the present application 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," "second," or "third" 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, etc., unless specifically limited otherwise.

Optionally, referring to fig. 1, fig. 2, fig. 3, and fig. 8, fig. 8 is a schematic partial structure diagram of the speaker in the embodiment of fig. 1, wherein the magnetic component 200 and the diaphragm 320 of the vibration component 300 are respectively connected to the main housing 110 of the housing 100, the coil 310 of the vibration component 300 is disposed in the magnetic field of the magnetic component 200, and can be driven by the magnetic field to vibrate along the direction of the extension plane Z of the ring structure when powered on, so as to drive the diaphragm 320 to vibrate, the diaphragm 320 is disposed corresponding to the second sound outlet 121 of the cover plate 120, and sound can be transmitted from the second sound outlet 121.

Optionally, the magnetic assembly 200 in the embodiment of the present application includes a first magnetic unit 210 and a second magnetic unit 220, the first magnetic unit 210 and the second magnetic unit 220 are disposed adjacent to each other, a magnetic field gap 2000 is formed therebetween, and the coil 310 is inserted into the magnetic field gap 2000. Referring to fig. 2, the inner surface of the main housing 110 in the present embodiment may be provided with a positioning protrusion 111, and correspondingly, the ends of the first magnetic unit 210 and the second magnetic unit 220 are respectively provided with a notch 201 abutted and matched with the end of the first magnetic unit 210 and the second magnetic unit 220, and by designing the matching structure of the notch 201 and the positioning protrusion 111, the mounting fool-proofing and positioning of the first magnetic unit 210 and the second magnetic unit 220 can be realized. In addition, it should be noted that, in some other embodiments, the overall shapes of the first magnetic unit 210 and the second magnetic unit 220 may not be limited to a half cylinder, but may also be a rectangular parallelepiped or other irregular shapes, which is not limited herein.

The first magnetic unit 210 includes a first magnet 211 and a second magnet 212 with opposite N \ S poles; in the embodiment of fig. 8, the first magnet 211 faces upward with its north pole facing downward as its south pole, and the second magnet 212 faces upward with its south pole facing downward as its north pole; the second magnetic unit 220 includes a third magnet 221 and a fourth magnet 222 with opposite N \ S poles; in the embodiment of fig. 8, the third magnet 221 faces upward and has its S-pole facing downward and N-pole facing downward, and the fourth magnet 222 faces upward and has its N-pole facing downward and S-pole facing downward; wherein the first magnet 211 and the third magnet 221 are disposed coplanar (horizontal plane), and the second magnet 212 and the fourth magnet 222 are disposed coplanar (horizontal plane). The first, second, third and fourth magnets 211, 212, 221 and 222 may be permanent magnets.

Optionally, with continuing reference to fig. 3 and fig. 8, the first magnetic unit 210 in the embodiment of the present application further includes a first magnetic conductive plate 213, where the first magnetic conductive plate 213 is sandwiched between the first magnet 211 and the second magnet 212; the second magnetic unit 220 further includes a second magnetic conduction plate 223, and the second magnetic conduction plate 223 is sandwiched between the third magnet 221 and the fourth magnet 222; the first magnetic conductive plate 213 and the second magnetic conductive plate 223 have the same thickness and are disposed in a coplanar (horizontal plane).

Optionally, with continued reference to fig. 3 and 8, the first magnetic unit 210 further includes a third magnetic conductive plate 214, where the third magnetic conductive plate 214 is disposed on a side of the first magnet 211 facing away from the first magnetic conductive plate 213; similarly, the second magnetic unit 220 further includes a fourth magnetic conductive plate 224, where the fourth magnetic conductive plate 224 is disposed on a side of the third magnet 221 facing away from the second magnetic conductive plate; the third magnetic conductive plate 214 and the fourth magnetic conductive plate 224 have the same thickness and are disposed in a coplanar (horizontal plane in this embodiment).

Optionally, in this embodiment, the first straight section 311 of the coil 310 is disposed in the magnetic gap between the third magnetic conductive plate 214 and the fourth magnetic conductive plate 224, and the second straight section 313 is disposed in the magnetic gap between the first magnetic conductive plate 213 and the second magnetic conductive plate 223. The area with the most uniform basic magnetic induction intensity at the position can improve the utilization rate of a magnetic field and increase the magnetic induction intensity of the coil.

It should be noted that, in this example, only the first magnetic unit and the second magnetic unit respectively include two magnets and a magnetic conductive plate structure is taken as an example for description, and in some other embodiments, the first magnetic unit and the second magnetic unit may also include a plurality of stacked magnets and magnetic conductive plates, respectively, which is within the understanding range of those skilled in the art and is not described herein again.

The magnetic component in the embodiment adopts a multilayer magnetic circuit structure, and compared with the traditional moving coil magnetic circuit structure, the magnetic component can enable the coil to be positioned in the strongest uniform magnetic field, so that the utilization rate of the magnet is improved, the conversion efficiency is greatly improved by about 20%, the magnetic leakage is reduced, the utilization rate of the magnet is improved, the overall sensitivity is high, the driving force of the coil is enhanced, and the sound energy and the details are more prominent.

Optionally, with continued reference to fig. 3 and 8, the magnetic assembly 200 in this embodiment further includes a fifth magnetic conductive plate 230; the side of the second magnet 212 departing from the first magnetic conductive plate 213 and the side of the fourth magnet 222 departing from the second magnetic conductive plate 223 are respectively connected to the fifth magnetic conductive plate 230; the fifth magnetic conductive plate 230 is connected to the main housing 110 of the housing 100, and forms an accommodating space of the housing 100 in cooperation with the main housing 110.

Optionally, with continuing reference to fig. 2 and fig. 8, the speaker 10 in this embodiment further includes a signal connecting plate 400, a receiving slot 231 is disposed at a position of the fifth magnetic conductive plate 230 corresponding to the magnetic field gap 2000, one end of the signal connecting plate 400 is disposed in the receiving slot 231 and electrically connected to the coil 310, and the other end of the signal connecting plate 400 extends out of the housing 100 for connecting to an external control circuit.

Optionally, with continuing reference to fig. 2 and fig. 3, the speaker 10 of the present embodiment further includes a support ring 500, the support ring 500 is connected to the main housing 110 of the housing 100, the circumference of the diaphragm 320 is connected to the support ring 500, and a hollow area 510 in the middle of the support ring 500 provides a vibration space for the diaphragm 320 in the thickness direction. It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present application 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.

Referring to fig. 9, fig. 9 is a comparison graph of high frequency signal response of the speaker structure in the present embodiment and the speaker structure in the conventional solution, where L1 is a high frequency signal response curve in the present embodiment, and L2 is a high frequency signal response curve of the speaker in the conventional solution. In the loudspeaker in the embodiment of the application, firstly, the diaphragm is in a plane shape, compared with the diaphragm with the edge corrugated rim structure in the conventional prior art, the plane-structure diaphragm in the embodiment can avoid harmful vibration modes such as swing and the like, the high-frequency vibration response is fast to follow, and the high frequency extends well; in addition, the vibrating diaphragm of the planar structure is matched with the vertical coil to be directly driven in the center, particularly, the main vibration area of a high-frequency signal is in the center, the coil directly drives the center of the vibrating diaphragm, so that the transmission loss can be reduced, the vibration is inhibited and cut, the following capability to the signal is strong, the frequency width of audio frequency can be further widened, the tone quality is improved, and the high pitch of the loudspeaker is fine and bright.

Further, an electronic device is provided in an embodiment of the present application, please refer to fig. 10 and 11 together, fig. 10 is a schematic structural diagram of an embodiment of the electronic device of the present application, fig. 11 is a schematic structural cross-sectional diagram of the electronic device at a position B-B in the embodiment of fig. 10, the electronic device in the embodiment may include a mobile phone, a tablet computer, a notebook computer, a wearable device, a television, and the like, and what is done in the illustration is only a mobile phone. The electronic apparatus may include a display screen module 30, an external protector 40, a control circuit board 20, and a speaker 10. The structure of the speaker 10 can refer to the related description of the foregoing embodiments, and is not described herein again.

Optionally, the display screen module 30 and the external protection member 40 cooperate to form an accommodating space 1000, the control circuit board 20 and the speaker 10 are disposed in the accommodating space 1000, the control circuit board 20 is electrically connected to the display screen module 30 and the speaker 10, respectively, and the control circuit board 20 is configured to control operating states of the display screen module 30 and the speaker 10. The detailed technical features of other parts of the electronic device are within the understanding of those skilled in the art, and are not described herein.

Referring to fig. 12, fig. 12 is a block diagram illustrating a structural configuration of an embodiment of an electronic device according to the present application, where the electronic device is a mobile phone. The structure of the electronic device may include an RF circuit 910, a memory 920, an input unit 930, a display unit 940 (which may be the display screen module 30 in the above-mentioned embodiment), a sensor 950, an audio circuit 960, a wifi module 970, a processor 980 (which may be the control circuit board 20 in the above-mentioned embodiment), a power supply 990, and the like. Wherein the RF circuit 910, the memory 920, the input unit 930, the display unit 940, the sensor 950, the audio circuit 960, and the wifi module 970 are respectively connected with the processor 980; power supply 990 is used to provide power to the entire electronic device.

Specifically, the RF circuit 910 is used for transmitting and receiving signals; the memory 920 is used for storing data instruction information; the input unit 930 is used for inputting information, and may specifically include a touch panel 931 and other input devices 932 such as operation keys; the display unit 940 may include a display panel 941; the sensor 950 includes an infrared sensor, a laser sensor, etc. for detecting a user approach signal, a distance signal, etc.; a speaker 961 (which may be the speaker 10 of the previous embodiment) and a microphone 962 are coupled to the processor 980 via audio circuitry 960 for emitting and receiving sound signals; the wifi module 970 is used for receiving and transmitting wifi signals, and the processor 980 is used for processing data information of the electronic device. For specific structural features of the electronic device, please refer to the related description of the above embodiments, and detailed descriptions thereof will not be provided herein.

In the embodiment, the speaker of the electronic device is vertically or nearly vertically arranged at the middle position of the coil (the extension plane where the annular structure is located) and the vibrating diaphragm (the extension plane) of the planar structure, the voice coil can directly drive the vibrating diaphragm to vibrate at the center position, so that the transmission loss is reduced, the swinging is avoided, and harmful vibration modes such as vibration and the like are segmented.

An embodiment of the present application further provides an earphone, please refer to fig. 13 and fig. 14 together, fig. 13 is an overall structure schematic diagram of an embodiment of the earphone of the present application, fig. 14 is a structure schematic diagram of the earphone in the embodiment of fig. 13, the earphone in the present embodiment includes a housing 10a, a main control circuit board 10b and a speaker 10, optionally, the housing 10a may include two parts (a first housing 10a1 and a second housing 10a2), a receiving cavity 10a0 is formed in the housing 10a, and a first sound outlet 10a3 communicating the receiving cavity 10a0 with the outside is disposed on the surface of the housing 10 a; the main control circuit board 10b and the speaker 10 are disposed in the accommodating cavity 10a0 of the housing 10a, the main control circuit board 10b is electrically connected to the speaker 10 and is used for controlling the working state of the speaker 10, and the speaker 10 is disposed corresponding to the first sound outlet 10a3 and can make a sound through the first sound outlet 10a 3. For details of the structure of the speaker 10, please refer to the related description of the foregoing embodiments, which is not repeated here.

Optionally, the earphone in this embodiment may be a wired earphone or a wireless bluetooth earphone, and when the earphone is a wireless bluetooth earphone, the earphone may further include a battery 10c, and the battery 10c is disposed in the accommodating cavity 10a0 and electrically connected to the main control circuit board 10 b. Other structural features of the earphone are within the understanding of those skilled in the art and will not be described herein.

In the embodiment, the earphone has the advantages that the middle position of the loudspeaker is perpendicular or close to perpendicular to the coil (the extension plane where the annular structure is located) and the middle position of the diaphragm (the extension plane) of the planar structure, the voice coil can directly drive the diaphragm to vibrate in the center position, transmission loss is reduced, swinging is avoided, harmful vibration modes such as vibration and the like are segmented, high-frequency vibration response is fast to follow, high frequency extends well, the frequency width of audio frequency can be greatly widened, and the tone quality is improved, so that the high-tone of the loudspeaker is fine and bright.

The above only is the partial embodiment of the utility model discloses a not therefore restriction the utility model discloses a protection scope, all utilize the utility model discloses equivalent device or equivalent flow transform that the content of description and drawing was done, or direct or indirect application in other relevant technical field, all the same reason is included in the patent protection scope of the utility model.

Claims (15)

1. A loudspeaker, comprising a housing, a magnetic component, and a vibration component; the vibration component comprises a coil and a vibrating diaphragm; the coil is connected with the middle part of the vibrating diaphragm; an included angle between an extension plane where the coil is located and an extension plane where the diaphragm is located is 90 +/-5 degrees; wherein the diaphragm is a planar structure; the magnetic assembly and the vibrating diaphragm are respectively connected with the shell, the coil is arranged in a magnetic field of the magnetic assembly and can be driven by the magnetic field to vibrate along an extending plane where the annular structure is located when the coil is electrified, and then the vibrating diaphragm is driven to vibrate.

2. A loudspeaker as claimed in claim 1, characterized in that the extension plane of the coil is perpendicular to the extension plane of the diaphragm.

3. The loudspeaker of claim 1, wherein the coil is an annular structure comprising a first straight section, a first arcuate section, a second straight section, and a second arcuate section connected end to end in series; the first straight section and the second straight section are arranged in parallel at intervals; the first straight section is connected with the vibrating diaphragm, and the first straight section is arranged in parallel with the extending plane where the vibrating diaphragm is located.

4. A loudspeaker according to claim 3, wherein the width of the coil in the plane of extension is greater than the thickness of the coil, and both sides of the coil in the thickness direction are planar.

5. The loudspeaker of claim 1, wherein the magnetic assembly comprises a first magnetic unit and a second magnetic unit, the first magnetic unit and the second magnetic unit are disposed adjacent to each other with a magnetic field gap formed therebetween, and the coil is inserted into the magnetic field gap.

6. The loudspeaker of claim 5, wherein the first magnetic unit comprises a first magnet and a second magnet with opposite N \ S poles; the second magnetic unit comprises a third magnet and a fourth magnet which are oppositely arranged in N \ S poles; the first magnet and the third magnet are disposed coplanar, and the second magnet and the fourth magnet are disposed coplanar.

7. The loudspeaker of claim 6, wherein the first magnetic unit further comprises a first magnetically permeable plate sandwiched between the first and second magnets; the second magnetic unit further comprises a second magnetic conduction plate, and the second magnetic conduction plate is clamped between the third magnet and the fourth magnet; the first magnetic conduction plate and the second magnetic conduction plate are the same in thickness and are arranged in a coplanar mode.

8. The loudspeaker of claim 7, wherein the first magnetic unit further comprises a third magnetically permeable plate disposed on a side of the first magnet facing away from the first magnetically permeable plate; the second magnetic unit further comprises a fourth magnetic conduction plate, and the fourth magnetic conduction plate is arranged on one side, away from the second magnetic conduction plate, of the third magnet; the third magnetic conduction plate and the fourth magnetic conduction plate are the same in thickness and are arranged in a coplanar mode.

9. The loudspeaker of claim 8 wherein the coil comprises a first straight section, a first arcuate section, a second straight section, and a second arcuate section connected end to end in series; the first straight section and the second straight section are arranged in parallel at intervals; the first straight section is arranged in a magnetic field gap between the third magnetic conduction plate and the fourth magnetic conduction plate, and the second straight section is arranged in a magnetic field gap between the first magnetic conduction plate and the second magnetic conduction plate.

10. The loudspeaker of claim 8, wherein the magnetic assembly further comprises a fifth magnetically permeable plate; one side of the second magnet, which is far away from the first magnetic conduction plate, and one side of the fourth magnet, which is far away from the second magnetic conduction plate, are respectively connected with the fifth magnetic conduction plate; and the fifth magnetic conduction plate is connected with the shell.

11. The loudspeaker of claim 10, further comprising a signal connection plate, wherein a receiving slot is disposed at a position of the fifth magnetic conductive plate corresponding to the magnetic field gap, one end of the signal connection plate is disposed in the receiving slot and electrically connected to the coil, and the other end of the signal connection plate extends out of the housing.

12. The loudspeaker of claim 5, wherein the inner surface of the housing is provided with a positioning protrusion, and the ends of the first magnetic unit and the second magnetic unit are respectively provided with notches, and the notches are in abutting fit with the positioning protrusion.

13. A loudspeaker according to any one of claims 1 to 12, further comprising a support ring, the support ring being connected to the housing, the diaphragm being connected around its periphery to the support ring.

14. An earphone, which is characterized in that the earphone comprises a shell, a main control circuit board and the loudspeaker of any one of claims 1 to 13, wherein a containing cavity is formed in the shell, and a first sound outlet hole which is communicated with the containing cavity and the external space of the containing cavity is formed in the surface of the shell; the main control circuit board and the loudspeaker are arranged in the accommodating cavity, the main control circuit board is electrically connected with the loudspeaker and is used for controlling the loudspeaker, and the loudspeaker corresponds to the first sound outlet.

15. An electronic device, characterized in that the electronic device comprises a control circuit board and a loudspeaker according to any one of claims 1-13, the control circuit board being electrically connected to the loudspeaker and being adapted to control the loudspeaker.

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