Double-moving-coil loudspeaker and earphone

Abstract

The utility model discloses a double-moving-coil loudspeaker and an earphone. The double-moving-coil loudspeaker comprises a first magnetic assembly, a first sound production assembly, a first support, a second magnetic assembly, a second sound production assembly, a second support and a separator. The first magnetic assembly is arranged in the first support, and the first sounding assembly covers one end of the first support; a first through hole is formed in the first sound production assembly; the separator is embedded in the first support and covers the other end of the first support, the separator penetrates through the first through hole, a containing cavity is formed in the separator, the second magnetic assembly is arranged in the second support, and the second sound production assembly is installed at one end of the second support; the second support is embedded in the containing cavity, and the second magnetic assembly and the second sound production assembly are both located in the containing cavity. Through the separator, separation and independent output of the treble and bass modules are realized, the bandwidth of the loudspeaker is improved, the acoustic performance of the loudspeaker is improved, the height of the loudspeaker is reduced, and the spatial layout freedom degree of the loudspeaker is optimized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of loudspeaker, especially a double moving coil loudspeaker and earphone. BACKGROUND

[0002] With the continuous development of electronic technology, the user's sound quality requirement to earphone is also higher and higher. In the constitutive component of earphone, the acoustic performance of loudspeaker will directly affect the sound quality effect of earphone output, and the structure setting of loudspeaker will directly affect the acoustic performance of loudspeaker. In the existing loudspeaker structure, in order to improve the acoustic performance of loudspeaker, the double output unit mode is usually adopted, but such mode still has the problems of poor space isolation effect of double output unit, phase interference between double output units, which will affect the acoustic performance of loudspeaker, and further affect the output sound quality of earphone, and the structure height of loudspeaker is too high, which further affects the space layout of loudspeaker.

[0003] Therefore, it is necessary to provide a double moving coil loudspeaker and earphone to solve the above problems. CONTENT OF UTILITY MODEL

[0004] In view of the deficiencies in the prior art, the utility model provides a double moving coil loudspeaker and earphone, which can effectively solve the phase interference problem between sound generating units, and further improve the acoustic performance of loudspeaker and optimize the sound quality effect of earphone.

[0005] In order to achieve the above purpose, the first aspect of the utility model provides a double moving coil loudspeaker, which comprises a first magnetic component, a first sound generating component, a first support, a second magnetic component, a second sound generating component, a second support and a partition; the first magnetic component is arranged inside the first support, and the first sound generating component is arranged at one end of the first support; a first through hole is formed in the first sound generating component; the partition is embedded in the first support and covers the other end of the first support, the partition penetrates the first through hole, and the inside of the partition is provided with a containing cavity communicating both ends of the partition; the second magnetic component is arranged inside the second support, and the second sound generating component is arranged at one end of the second support; the second support is embedded in the containing cavity, and the second magnetic component and the second sound generating component are located in the containing cavity.

[0006] In a preferred embodiment, the partition comprises a bearing body, a covering body and a sound guide body; the covering body is formed by extending from one end of the bearing body; the sound guide body is formed by extending from the other end of the bearing body, and the sound guide body penetrates the first through hole.

[0007] In a preferred embodiment, at least one tuning hole is arranged on the covering body.

[0008] In a preferred embodiment, a first positioning part is arranged on the covering body, and a second positioning part matched with the first positioning part is arranged on the first support.

[0009] In a preferred embodiment, the first support comprises a first body part, an electrical connection part and an equalization part; the electrical connection part and the equalization part are connected to the outer surface of the first body part, and the first cavity is formed in the first body part.

[0010] In a preferred embodiment, at least one third positioning part is arranged on the outer surface of the first body part.

[0011] In a preferred embodiment, the FPC piece is arranged on the side of the partition piece away from the first sound generating assembly.

[0012] In a preferred embodiment, the second support is provided with a wire outlet hole.

[0013] In a preferred embodiment, a copper ring is arranged between the second support and the accommodating cavity.

[0014] The second aspect of the utility model provides a kind of earphone, it includes the double moving coil loudspeaker of any one of the above embodiment.

[0015] The utility model has the advantages that: it is arranged with the partition piece that is penetrated first through hole and is formed with accommodating cavity inside in the inside of loudspeaker, and high sound module of loudspeaker is arranged in the accommodating cavity of partition piece, the separation of bass module and high sound module is realized and independent output, can effectively reduce the phase interference between first sound generating assembly and second sound generating assembly, increase the frequency width of loudspeaker, improve the acoustic performance of loudspeaker, simultaneously, the structural height of loudspeaker can be effectively reduced, the volume of loudspeaker is reduced, and then the spatial layout degree of freedom of loudspeaker in earphone is improved, and the diversity of earphone modeling design is improved to a certain extent. DRAWINGS

[0016] Figure 1 It is the first structure schematic view of double moving coil loudspeaker provided by the utility model;

[0017] Figure 2 It is the second structure schematic view of double moving coil loudspeaker provided by the utility model;

[0018] Figure 3 It is the section structure schematic view of double moving coil loudspeaker provided by the utility model;

[0019] Figure 4 It is the first structure schematic view of partition piece of double moving coil loudspeaker provided by the utility model;

[0020] Figure 5 It is the second structure schematic view of partition piece of double moving coil loudspeaker provided by the utility model;

[0021] Figure 6The utility model provides a double -moving coil loudspeaker's first support's structural diagram. DETAILED DESCRIPTION

[0022] In the utility model, the terms "provide", "have", "connect" should be understood in a broad sense. For example, it can be fixedly connected, detachably connected, or integrally configured; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] The terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one feature. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0024] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the term can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For ordinary skilled persons in the art, the specific meaning of these terms in the utility model can be understood according to the specific circumstances.

[0025] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0026] The following is the content of the first aspect of the utility model:

[0027] Please refer to Figures 1 to 3 In the embodiment, the double-moving coil loudspeaker comprises a first magnetic assembly 1, a first sound generating assembly 2, a first support 3, a second magnetic assembly 4, a second sound generating assembly 5, a second support 6 and a partition 7.

[0028] Among them, the first magnetic assembly 1 is used to generate a first magnetic field in the loudspeaker to interact with the first sound generating assembly 2, and then push the first sound generating assembly 2 and generate corresponding sound waves. The second magnetic assembly 4 is used to generate a second magnetic field in the loudspeaker to interact with the second sound generating assembly 5, and then push the second sound generating assembly 5 and generate corresponding sound waves.

[0029] The first support 3 is used for accommodating the first magnetic assembly 1 and mounting the first sound production assembly 2, and the second support 6 is used for accommodating the second magnetic assembly 4 and mounting the second sound production assembly 5. The first sound production assembly 2 is a low-pitch sound production unit of a loudspeaker, and the second sound production assembly 5 is a high-pitch sound production unit of the loudspeaker.

[0030] The first magnetic assembly 1 and the first sound production assembly 2 constitute a low-pitch module of the loudspeaker, and the second magnetic assembly 4 and the second sound production assembly 5 constitute a high-pitch module of the loudspeaker. Preferably, the low-pitch module and the high-pitch module of the loudspeaker are coaxially arranged in the loudspeaker, i.e., the first magnetic assembly 1, the first sound production assembly 2, the second magnetic assembly 4 and the second sound production assembly 5 are coaxially arranged in the loudspeaker.

[0031] The partition 7 is used for forming two independent chambers in the loudspeaker to separate the low-pitch module and the high-pitch module, i.e., the partition 7 separates the first magnetic assembly 1 and the first sound production assembly 2 in the same chamber and separates the second magnetic assembly 4 and the second sound production assembly 5 in another chamber.

[0032] The first support 3 is used for accommodating the first magnetic assembly 1 and mounting the first sound production assembly 2, and the second support 6 is used for accommodating the second magnetic assembly 4 and mounting the second sound production assembly 5. The first sound production assembly 2 is a low-pitch sound production unit of a loudspeaker, and the second sound production assembly 5 is a high-pitch sound production unit of the loudspeaker.

[0033] Specifically, the first magnetic assembly 1 comprises a hollow first magnetic body 11 and a hollow first magnetic conductor 12 arranged on the first magnetic body 11, and the partition 7 penetrates the first magnetic body 11 and the first magnetic conductor 12; the first sound production assembly 2 comprises a first diaphragm 21 with a first through hole 211 and a first voice coil 22. The first magnetic body 11 and the first magnetic conductor 12 are arranged in the first cavity of the first support 3, and a first gap is formed between the first magnetic body 11, the first magnetic conductor 12 and the partition 7 embedded in the first support 3. The first diaphragm 21 is mounted at one end of the first support 3. One end of the first voice coil 22 is connected to the first diaphragm 21, and the other end of the first voice coil 22 is located in the first gap.

[0034] It can be understood that the first magnetic assembly 1 generates a first magnetic field in the loudspeaker, and during the operation of the loudspeaker, a varying current passes through the first voice coil 22, the first voice coil 22 located in the first gap generates a magnetic field with a varying intensity, under the interaction of the magnetic fields, the first voice coil 22 reciprocates in the first gap, and then pushes the first diaphragm 21 to reciprocate, so as to generate a corresponding sound wave.

[0035] The second magnetic assembly 4 comprises a second magnetic body 41 and a second magnetic conductor 42 arranged on the second magnetic body 41, and the second sound generating assembly 5 comprises a second diaphragm 51 and a second voice coil 52. The second magnetic body 41 and the second magnetic conductor 42 are arranged in the second support 6, and the second magnetic body 41, the second magnetic conductor 42 and the side wall of the second cavity form a second gap. The second diaphragm 51 is installed at one end of the second support 6, one end of the second voice coil 52 is connected to the second diaphragm 51, and the other end of the second voice coil 52 is located in the second gap. The end of the second support 6 on which the second diaphragm 51 is installed is embedded in the accommodating cavity 71 of the partition 7.

[0036] It can be understood that the second magnetic assembly 4 generates a second magnetic field in the loudspeaker, and during the operation of the loudspeaker, a varying current passes through the second voice coil 52, the second voice coil 52 located in the second gap generates a magnetic field with a varying intensity, under the interaction of the magnetic fields, the second voice coil 52 reciprocates in the second gap, and then pushes the second diaphragm to reciprocate, so as to generate a corresponding sound wave. The partition 7 penetrates the first through hole 211 of the first diaphragm 21, and the accommodating cavity 71 communicates two ends of the partition 7, so that the sound wave generated by the second sound generating assembly 5 can be output to the outside through the accommodating cavity 71.

[0037] The double-moving-coil loudspeaker provided by the application sets the partition 7 which penetrates the first through hole 211 and has the accommodating cavity 71 formed in the inside, sets the high-frequency module of the loudspeaker in the accommodating cavity 71 of the partition 7, realizes the separate setting and independent output of the low-frequency module and the high-frequency module, can effectively reduce the phase interference between the first sound generating assembly 2 and the second sound generating assembly 5, increase the frequency width of the loudspeaker, improve the acoustic performance of the loudspeaker, can effectively reduce the structural height of the loudspeaker, reduce the volume of the loudspeaker, and then improve the spatial layout degree of freedom of the loudspeaker in the earphone, and to a certain extent, improve the diversity of the earphone modeling design.

[0038] Further, please refer to Figures 3 to 5 In one embodiment, the partition 7 comprises a bearing body 72, a cover body 73 and a sound guide body 74; the cover body 73 is formed by extending one end of the bearing body 72; the sound guide body 74 is formed by extending the other end of the bearing body 72, and the sound guide body 74 penetrates the first through hole 211.

[0039] The supporting body 72 is the main structure of the separator 7 used to house the devices. The overall shape of the supporting body 72 includes, but is not limited to, a column or an irregular column, which can be selected according to the actual design requirements. Preferably, the overall shape of the supporting body 72 is a column. The cover body 73 is an auxiliary structure for fixing the separator 7 to the first bracket 3, and is also used to help separate the bass module and the tweeter module. The sound guide body 74 is the sound output structure of the separator 7 used to assist the tweeter module in outputting sound waves, and can conduct the sound waves generated by the second sound-generating component 5 to the outside of the speaker.

[0040] Specifically, the receiving cavity 71 extends through the supporting body 72 and the sound guide body 74. The receiving cavity 71 includes a supporting cavity 711 disposed in the supporting body 72 and a sound guide cavity 712 disposed in the sound guide body 74. The supporting cavity 711 is used to accommodate the second magnetic component 4, the second sound-generating component 5 and the second support 6. The sound guide cavity 712 is used to conduct the sound waves generated by the second sound-generating component 5.

[0041] After the first magnetic component 1 and the first sound-generating component 2 are placed inside the first bracket 3, the separator 7 is embedded inside the first bracket 3, and the sound guide 74 passes through the first through hole 211 on the first diaphragm 21. The structural height of the sound guide 74 passing through the first through hole 211 needs to be designed in combination with the vibration range of the first diaphragm 21, the output effect of the tweeter module, and the spatial structure of the speaker. Preferably, the structure of the sound guide 74 passing through the first through hole 211 is higher than the first diaphragm 21.

[0042] After the second magnetic component 4 and the second sound-generating component 5 are installed in the second bracket 6, the second bracket 6 is then embedded in the bearing cavity 711 of the bearing body 72. After the second sound-generating component 5 generates sound waves, the sound waves are conducted to the outside of the speaker through the sound-guiding cavity 712 of the sound guide 74.

[0043] Understandably, by providing a bearing cavity 711 on the bearing body 72 of the separator 7, the second magnetic component 4 and the second sound-emitting component 5 can be accommodated. This effectively reduces the space occupied by the second magnetic component 4 and the second sound-emitting component 5 in the speaker, improves the compactness of the speaker's internal structure, avoids excessive overall height of the speaker, and thus optimizes the spatial layout of the speaker within the headphones. By providing a sound-guiding cavity 712 on the separator 7 that connects to the bearing cavity 711 of the bearing body 72, the sound waves generated by the second sound-emitting component 5 can be output to the outside of the speaker while separating the first sound-emitting component 2 and the second sound-emitting component 5. This effectively reduces phase interference between the first sound-emitting component 2 and the second sound-emitting component 5, increases the speaker's bandwidth, and improves the speaker's acoustic performance.

[0044] For further details, please refer to... Figure 4In one embodiment, the cover 73 is provided with at least one tuning hole 731. The tuning hole 731 is used to adjust the sound effect output by the speaker.

[0045] Specifically, the shape and number of tuning holes 731 can be selected according to the actual design requirements. In a preferred embodiment, the tuning holes 731 are two arc-shaped through slots, which are symmetrically arranged on the cover body 73.

[0046] Understandably, using two symmetrically arranged arc-shaped tuning holes is more conducive to airflow, which can better disperse internal air pressure, enhance the low frequency of the speaker, increase the depth and fullness of the sound, thereby improving the acoustic performance of the speaker, and is also more conducive to heat dissipation of the internal components of the speaker.

[0047] Furthermore, to improve the installation efficiency of the separator 7 embedded in the first bracket 3, please refer to... Figure 5 In a preferred embodiment, the cover body 73 is provided with a first positioning part 732, and the first bracket 3 is provided with a second positioning part 35 that cooperates with the first positioning part 732.

[0048] The first positioning part 732 and the second positioning part 35 are used to assist in the positioning and installation between the cover assembly 73 and the first bracket 3. The first positioning part 732 and the second positioning part 35 correspond to each other. The first positioning part 732 can be either a positioning block or a positioning groove, and the second positioning part 35 can be the remaining item among the positioning block and the positioning groove. The design can be selected according to the actual situation.

[0049] Specifically, the number of the first positioning part 732 and the second positioning part 35 can be selected according to the actual design requirements. Preferably, there are three of each of the first positioning part 732 and the second positioning part 35. It can be understood that by using the principle of three points forming a plane, setting the number of each of the first positioning part 732 and the second positioning part 35 to three allows the three sets of the first positioning part 732 and the second positioning part 35 to form a plane, which can improve the convenience of positioning and installation between the cover body 73 and the first bracket 3, and can also better constrain the degree of freedom between the cover body 73 and the first bracket 3.

[0050] For further details, please refer to... Figure 6 In one embodiment, the first support 3 includes a first main body 31, an electrical connection 32 and a voltage equalization part 33; the electrical connection 32 and the voltage equalization part 33 are both connected to the outer surface of the first main body 31, and the first cavity 311 is formed inside the first main body 31.

[0051] The first main body 31 is used to house the first magnetic component 1 and support the first sound-generating component 2. The shape of the first main body 31 includes, but is not limited to, ring-shaped or block-shaped, and can be selected according to the actual design requirements. Preferably, the first main body 31 is a hollow ring-shaped component. The electrical connection part 32 is the electrical connection structure of the bass module; the pressure equalization part 33 is used to balance the pressure between the cavity where the speaker is installed and the outside environment.

[0052] Specifically, a second positioning part 35 is formed on the first main body 31 to cooperate with the first positioning part 732 on the cover 73, and a support platform for mounting the first magnetic component 1 is formed in the first cavity 311 inside the first main body 31. An electrode for electrically connecting the first voice coil 22 is provided on the electrical connection part 32, and an external control current is output into the first voice coil 22 through the electrode. The first voice coil 22 generates a changing magnetic field as the current output from the electrical connection part 32 changes.

[0053] The electrical connection 32 and the voltage equalization part 33 can be connected to the same side of the outer surface of the first main body 31, or they can be connected to different sides of the outer surface of the first main body 31. Preferably, the electrical connection 32 and the voltage equalization part 33 are connected to the same side of the outer surface of the first main body 31. It is easy to understand that connecting the electrical connection 32 and the voltage equalization part 33 to the same side of the outer surface of the first main body 31 is more conducive to improving the freedom of speaker spatial layout.

[0054] Furthermore, the shape and number of equalizing parts 33 will affect the overall acoustic performance of the loudspeaker. In a preferred embodiment, the equalizing part 33 is two arc-shaped parts, which are symmetrically arranged on both sides of the electrical connection part 32 and smoothly connected between the electrical connection part 32 and the first main body part 31.

[0055] Understandably, by setting two arc-shaped pressure equalization sections 33, it is more conducive to the airflow in the headphone cavity where the speaker is installed, and it is more conducive to balancing the air pressure inside and outside. This can effectively improve the output frequency response of the speaker, enhance the low-frequency performance, reduce sound distortion, and improve the sound quality of the speaker output. At the same time, it can reduce the pressure when wearing the headphones to a certain extent and improve the wearing comfort.

[0056] Furthermore, in a preferred embodiment, at least one third positioning part 34 is provided on the outer surface of the first main body 31. The third positioning part 34 is used to assist in the positioning and installation of the speaker within the earphone cavity.

[0057] Specifically, the third positioning part 34 can be any one of a positioning block or a positioning groove, which can be selected according to actual design requirements. Preferably, the third positioning part 34 is a positioning block. Similarly, the number of the third positioning part 34 can be selected according to actual design requirements. Preferably, the number of the third positioning part 34 is two, and the two third positioning parts 34 are respectively arranged on the two sides of the outer surface of the first main body part 31. As can be easily understood, arranging two third positioning parts 34 can better balance the stress of the loudspeaker and better constrain the freedom of the loudspeaker in the cavity of the earphone.

[0058] It can be understood that, by arranging the third positioning part 34 on the outer surface of the first main body part 31, the loudspeaker can be quickly positioned and installed in the cavity of the earphone, thereby improving the convenience and efficiency of loudspeaker installation.

[0059] Further, please refer to Figure 2 In one embodiment, the FPC piece 8 is arranged on the side of the partition piece 7 away from the first sound production assembly 2. The FPC piece 8 is an electrical connection device for controlling the high-frequency module.

[0060] Specifically, the FPC piece 8 is arc-shaped and is bonded to the side of the cover body 73 of the partition piece 7 away from the first sound production assembly 2. The FPC piece 8 is provided with a connecting piece for connecting the second voice coil 52, i.e., the FPC piece 8 is provided with a solder pad or an electrode for electrically connecting the second voice coil 52.

[0061] The current for controlling the high-frequency module externally is input to the second voice coil 52 through the solder pad or the electrode on the FPC piece 8, and the second voice coil 52 generates a corresponding changing magnetic field according to the changing current, and the second voice coil 52 generates a corresponding movement under the action of the second magnetic assembly 4.

[0062] In one preferred embodiment, please refer to Figure 2 The second support 6 is provided with a wire outlet hole 61. The wire outlet hole 61 penetrates the second cavity of the second support 6, and the wire outlet hole 61 is a wire channel for electrically connecting the FPC piece 8 to the second voice coil 52. It can be understood that, by arranging the wire outlet hole 61 on the second support 6, the electrical connection wire design of the second sound production assembly 5 can be optimized, and the space layout inside the loudspeaker can be optimized.

[0063] It can be understood that, by arranging the FPC piece 8, the physical frequency division of the bass module and the high-frequency module can be achieved, the control structure of the bass module and the high-frequency module is optimized, the compactness of the overall structure of the loudspeaker is improved, and by arranging the wire outlet hole 61, the wiring design of the high-frequency module can be optimized, the electrical connection work step of the loudspeaker is optimized, the installation efficiency of the loudspeaker is improved, and the production cost of the loudspeaker can be reduced to a certain extent.

[0064] Further, please refer to Figure 3In one embodiment, a copper ring 9 is arranged between the second support 6 and the accommodating cavity 71. Specifically, the copper ring 9 is abutted between the second support 6 and the accommodating cavity 71, and can achieve auxiliary compression and fixation of the second diaphragm 51.

[0065] It can be understood that, by arranging the copper ring 9 between the second support 6 and the accommodating cavity 71, the copper ring 9 is abutted between the second support 6 and the accommodating cavity 71, which can improve the stability of the installation of the second diaphragm 51, and at the same time, can to some extent, assist in improving the sound characteristics of the second sound production assembly 5, so as to improve the acoustic performance of the loudspeaker.

[0066] In summary, the double-moving-coil loudspeaker provided by the present application sets the high-frequency module of the loudspeaker in the accommodating cavity 71 of the partition 7 by arranging the partition 7 with the first through hole 211 and the accommodating cavity 71 inside the loudspeaker, realizes the separate arrangement and independent output of the low-frequency module and the high-frequency module, can effectively reduce the phase interference between the first sound production assembly 2 and the second sound production assembly 5, increase the frequency width of the loudspeaker, improve the acoustic performance of the loudspeaker, and at the same time, can effectively reduce the structural height of the loudspeaker and reduce the volume of the loudspeaker, thereby improving the spatial layout freedom of the loudspeaker in the earphone, and to some extent, improving the diversity of earphone modeling design.

[0067] The second aspect of the present application also provides an earphone, which comprises the double-moving-coil loudspeaker in the foregoing embodiments, and by the double-moving-coil loudspeaker, the spatial stacking freedom of the earphone can be improved, and the sound quality effect of the earphone output can be improved.

[0068] The above is only a specific embodiment of the present application, and it should be pointed out that, for ordinary skilled persons in the technical field, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection range of the present application.

Claims

1. A double moving coil loudspeaker, characterized by The double moving coil loudspeaker comprises a first magnetic assembly, a first sound production assembly, a first support, a second magnetic assembly, a second sound production assembly, a second support and a partition; a first cavity is formed in the first support and communicates with both ends of the first support; the first magnetic assembly is arranged in the first support; the first sound production assembly is arranged at one end of the first support; a first through hole is formed in the first sound production assembly; the partition is embedded in the first support and covers the other end of the first support; the partition penetrates the first through hole; the partition is provided with an accommodating cavity which communicates with both ends of the partition; the second magnetic assembly is arranged in the second support; the second sound production assembly is arranged at one end of the second support; the second support is embedded in the accommodating cavity; and the second magnetic assembly and the second sound production assembly are arranged in the accommodating cavity.

2. The dual moving coil loudspeaker of claim 1, wherein, The partition comprises a bearing body, a covering body and a sound guide body; the covering body is formed by extending one end of the bearing body; and the sound guide body is formed by extending the other end of the bearing body and penetrates the first through hole.

3. The dual moving coil loudspeaker of claim 2, wherein, At least one tuning hole is arranged on the covering body.

4. The dual moving coil loudspeaker of claim 2, wherein, A first positioning part is arranged on the covering body, and a second positioning part matched with the first positioning part is arranged on the first support.

5. The dual moving coil loudspeaker of claim 1, wherein, The first support comprises a first body part, an electrical connection part and a voltage equalization part; the electrical connection part and the voltage equalization part are connected to the outer surface of the first body part; and the first cavity is formed in the first body part.

6. The dual moving coil loudspeaker of claim 5, wherein, At least one third positioning part is arranged on the outer surface of the first body part.

7. The dual moving coil loudspeaker of claim 1, wherein, An FPC part is arranged on the side of the partition away from the first sound production assembly.

8. The dual moving coil loudspeaker of claim 7, wherein, A wire outlet hole is formed in the second support.

9. The dual moving coil loudspeaker of claim 1, wherein, A copper ring is arranged between the second support and the accommodating cavity.

10. An earphone, characterized by The double moving coil loudspeaker comprises any one of the loudspeakers in claims 1 to 9.

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