A receiver and its assembly process

Abstract

The present invention discloses a receiver and an assembly process thereof. The receiver includes a housing, a diaphragm mechanism and an electromagnetic drive mechanism. The vibration plate in the diaphragm mechanism includes at least one first vibration area and at least one second vibration area. Under the drive of the electromagnetic drive mechanism, the first vibration area and the second vibration area perform reciprocating vibrations in the same direction and at different vibration frequencies, thereby forming two pronunciation areas with different vibration frequencies in the same receiver. The assembly process of this receiver is divided into three modules. The first housing forms a module; the coil and the second housing form a module, and the diaphragm mechanism and the first permanent magnet and the second permanent magnet form a module; or the first housing forms a module; the diaphragm mechanism and the first soft magnet and the second soft magnet form a module, and the third permanent magnet and the second housing and the coil form a module; the three modules are pre-installed, and finally the three modules are assembled to realize the modular assembly process of the receiver.

Description

Technical Field

[0001] The invention relates to the technical field of acoustic components, and in particular to a receiver and an assembly process thereof. Background Art

[0002] A receiver is an electroacoustic device that converts audio electrical signals into sound signals without sound leakage. It is widely used in communication terminal equipment such as mobile phones, landlines, and headphones to achieve audio output.

[0003] With the continuous development of mobile devices, the structure of receivers is constantly updated. For example, Japanese patent document JP10301573A discloses a receiver, which includes a shell with a bottom opening, an iron core embedded in the bottom opening, a coil sleeved on the iron core, a magnet arranged on the iron core, and a vibration plate fixed in the shell by an annular isolation cylinder, and a Permal magnet is arranged on the top of the vibration plate.

[0004] In a receiver of this structure, when the coil is energized, the electromagnetic field generated by the coil increases or weakens the force of the fixed magnetic field, causing the vibration plate to vibrate in the vertical direction to achieve reciprocating vibration of the vibration plate, thereby arousing the air to vibrate and achieve sound.

[0005] However, the receiver of this structure can only realize one kind of audio sound, such as treble, bass, or mid-range sound, under the cooperation between the coil and the fixed magnetic field, that is, it cannot realize the sound generation process of multiple sound zones. Summary of the invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the receiver can only emit a single audio sound.

[0007] To this end, the present invention provides a receiver, comprising

[0008] a housing having an inner cavity;

[0009] A diaphragm mechanism is arranged in the inner cavity, dividing the inner cavity of the shell into a first cavity and a second cavity; the diaphragm mechanism comprises a fixed frame mounted on the shell, and a vibration plate suspended in the fixed frame; the vibration plate comprises at least one first vibration region and at least one second vibration region;

[0010] The electromagnetic driving mechanism is arranged in the inner cavity of the shell and is used to generate an electromagnetic driving force to drive the first vibration area and the second vibration area to perform reciprocating motion in the same direction and with different vibration frequencies.

[0011] Preferably, in the above-mentioned receiver, one end of the first vibration area and the second vibration area is suspended in the fixing frame, and the other end is fixed to the fixing frame through at least one first fixing end and at least one second fixing end on each of them;

[0012] The electromagnetic driving mechanism drives the suspended ends of the first vibration region and the second vibration region to perform reciprocating vibration.

[0013] Further preferably, in the above-mentioned receiver, the first vibration area and the second vibration area are independently arranged in the fixing frame.

[0014] More preferably, in the above-mentioned receiver, one end of the first vibration area and the second vibration area facing each other is suspended in the fixing frame, and the other end is respectively fixed to the fixing frame.

[0015] As another preferred embodiment, in the above-mentioned receiver, the vibration plate further comprises a transition region, and the first vibration region and the second vibration region are fixed to the fixing frame via the transition region.

[0016] Further preferably, in the above-mentioned receiver, both ends of the transition area are respectively fixed to the fixing frame through at least one third fixing end;

[0017] The first vibration region and the second vibration region are located at two sides of the transition region, and the first fixed end and the second fixed end are fixed on the transition region and / or the third fixed end.

[0018] Preferably, in the above-mentioned receiver, the sum of the widths of all the first fixed ends of the first vibration area is not equal to the sum of the widths of all the second fixed ends of the second vibration area; and / or

[0019] An area of ​​the first vibration region is not equal to an area of ​​the second vibration region.

[0020] Preferably, in the above-mentioned receiver, the electromagnetic driving mechanism is located in the second cavity, and comprises

[0021] A first permanent magnet is fixed on a surface of the first vibration region on one side facing the second cavity;

[0022] A second permanent magnet is fixed on a surface of the second vibration region on one side facing the second cavity, and has the same polarity as an end of the second permanent magnet on the same side;

[0023] The coil is fixed on the housing and is opposite to the first permanent magnet and the second permanent magnet and a required first gap is reserved.

[0024] Further preferably, in the above-mentioned receiver, the electromagnetic drive mechanism further comprises a pole shoe, the pole shoe having a groove opening toward one side of the vibration plate, and a magnetizing component fixed in the groove;

[0025] The coil is sleeved on the magnetizing component, and the first permanent magnet and the second permanent magnet are respectively located in the area between the magnetizing component and two arms of the pole shoe groove.

[0026] Preferably, in the above-mentioned receiver, the electromagnetic driving mechanism is located in the second cavity, and comprises

[0027] A first soft magnetic body is fixed on a surface of the first vibration region on one side facing the second cavity;

[0028] A second soft magnet is fixed on a surface of the second vibration region on one side facing the second cavity, and has the same polarity as the first soft magnet at one end located on the same side after being magnetized in the magnetic field;

[0029] A coil is fixed on the housing and is opposite to the first soft magnetic body and the second soft magnetic body and a required first gap is reserved;

[0030] The third permanent magnet is arranged in the inner hole of the coil.

[0031] Preferably, in the above-mentioned receiver, the electromagnetic drive mechanism further comprises a reset auxiliary permanent magnet arranged on the wall surface of the housing corresponding to the first cavity;

[0032] When corresponding to the first permanent magnet and the second permanent magnet, the polarity of the end of the resetting auxiliary permanent magnet facing the first permanent magnet or the second permanent magnet is opposite; the magnetic field strength of the fixed magnetic field of the resetting auxiliary permanent magnet is smaller than the magnetic field strength of the electromagnetic field generated by the coil; or

[0033] Corresponding to the first soft magnet and the second soft magnet, the polarities of the ends of the reset auxiliary permanent magnet and the third permanent magnet facing each other are opposite; the magnetic field strength of the fixed magnetic field of the reset auxiliary permanent magnet is smaller than the magnetic field strength of the fixed magnetic field of the third permanent magnet.

[0034] Preferably, in the above-mentioned receiver, a sound outlet hole and a tuning hole are respectively opened on the wall surface of the shell corresponding to the first cavity and the wall surface of the second cavity; it also includes a tuning tube embedded in the tuning hole and located in the second cavity, and a sound guide tube arranged on the outer surface of the shell and including the sound outlet hole.

[0035] Preferably, in the above-mentioned receiver, the housing comprises a first shell consisting of a first bottom surface and side walls, and a second shell consisting of a second bottom surface and side walls; the second shell is detachably snapped together with the first shell to enclose the inner cavity.

[0036] Preferably, in the above-mentioned receiver, the vibration plate further comprises at least one third vibration region, which, under the action of the electromagnetic driving mechanism, reciprocates with the first vibration region and the second vibration region in the same direction and at different frequencies.

[0037] The present invention provides a receiver assembly process, comprising the following steps:

[0038] S11: pre-fixing the first permanent magnet and the second permanent magnet respectively on the surface of the first vibration region and the second vibration region of the vibration plate of the diaphragm mechanism on the side facing away from the sound diaphragm;

[0039] The coil is pre-fixed in the second housing;

[0040] S12: installing a fixing frame of the diaphragm mechanism on the inner wall surface of the first shell or the second shell so that the coil is opposite to the first permanent magnet and the second permanent magnet and a required gap is reserved; and then the first shell is fixedly connected to the second shell;

[0041] Alternatively, the fixing frame of the diaphragm mechanism is installed between the openings of the first shell and the second shell, so that the coil is opposite to the first permanent magnet and the second permanent magnet and a required gap is reserved.

[0042] The present invention provides a receiver assembly process, comprising the following steps:

[0043] S21: pre-fixing the first soft magnetic material and the second soft magnetic material on the surface of the first vibration region and the second vibration region of the vibration plate of the vibration membrane mechanism on the side facing away from the sound producing membrane;

[0044] Pre-installing the third permanent magnet on the second housing, and then sleeve the coil on the third permanent magnet;

[0045] S22: installing a fixing frame of the diaphragm mechanism on the inner wall surface of the first shell or the second shell, so that the coil and the third permanent magnet are opposite to the first soft magnet and the second soft magnet and a required gap is reserved; and then the first shell is fixedly connected to the second shell;

[0046] Alternatively, the fixing frame of the diaphragm mechanism is fixed between the openings of the first shell and the second shell, so that the coil is opposite to the first soft magnetic body and the second soft magnetic body and a required gap is reserved.

[0047] Preferably, in the above-mentioned receiver assembly process, the receiver further comprises a pole shoe having a groove;

[0048] Corresponding to the first permanent magnet and the second permanent magnet, in step S11, a magnetizing component is provided in the groove of the pole shoe, the coil is sleeved on the magnetizing component, and then the pole shoe is installed on the second housing; or

[0049] Corresponding to the first soft magnetic body and the second soft magnetic body, in step S21, the third permanent magnet is pre-fixed in the groove of the pole shoe, and then the coil is sleeved on the third permanent magnet, and then the pole shoe is installed on the second shell.

[0050] The technical solution of the present invention has the following advantages:

[0051] 1. The receiver provided by the present invention comprises a housing, a diaphragm mechanism and an electromagnetic drive mechanism. The vibration plate in the diaphragm mechanism comprises at least one first vibration area and at least one second vibration area. Driven by the electromagnetic drive mechanism, the first vibration area and the second vibration area perform reciprocating vibrations in the same direction and at different vibration frequencies, thereby forming two pronunciation areas with different vibration frequencies in the same receiver.

[0052] 2. In the receiver provided by the present invention, one end of the first vibration area and the second vibration area in the vibration plate facing each other is suspended in the fixed frame, and the other end is fixed to the fixed frame. The two vibration areas are independently arranged in the fixed frame, and the rigidity of the first vibration area and the second vibration area can be different by changing their respective structures and the structure of the fixed end with the fixed frame, so that under the same electromagnetic driving force, the vibration frequencies of the two vibration areas are different to achieve the pronunciation function of the dual-tone area. At the same time, the first vibration area and the second vibration area are independent of each other, which is convenient for fixing the first vibration area and the second vibration area separately at their required positions.

[0053] 3. In the receiver provided by the present invention, the vibration plate also includes a transition area, and the first vibration area and the second vibration area are fixed on the fixed frame through the transition area, so that the three vibration areas become one, which is convenient for the installation of the vibration plate on the fixed frame; at the same time, driven by the first vibration area and the second vibration area, the transition area can also make reciprocating vibrations in the same direction and with different vibration frequencies with the two vibration areas, so that there are three sounds with different vibration frequencies in the same receiver, realizing the sound-producing function of three sound zones; and the rigidity of each vibration area can be made different by changing the fixed end structure of each vibration area and the structure of the vibration area itself, so as to realize multi-frequency vibration sound under the same electromagnetic driving force.

[0054] 4. The present invention provides a receiver assembly process, comprising the following steps: S11: pre-fixing a first permanent magnet and a second permanent magnet on a first vibration region and a second vibration region of a vibration plate in a diaphragm mechanism on a side surface facing away from a sound diaphragm, respectively, to form a first module;

[0055] The coil is pre-fixed in the second shell to form a second module; S12: Install the fixing frame of the diaphragm mechanism on the inner wall surface of the first shell or the second shell so that the coil is opposite to the first permanent magnet and the second permanent magnet and a required gap is reserved; then the first shell and the second shell are fixedly connected; or, install the fixing frame of the diaphragm mechanism between the openings of the first shell and the second shell so that the coil is opposite to the first permanent magnet and the second permanent magnet and a required gap is reserved.

[0056] The assembly process of this receiver is divided into three modules. The coil and the second shell form a module, the diaphragm mechanism and the first permanent magnet and the second permanent magnet form a module, and the first shell forms a module. The three modules are pre-installed and finally assembled to realize a modular assembly process, thereby improving the assembly efficiency of the receiver. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0058] Figure 1 A longitudinal cross-sectional schematic diagram of a first implementation manner of the receiver provided in Example 1 of the present invention;

[0059] Figure 2 for Figure 1 The right side diagram of the receiver;

[0060] Figure 3 is a schematic top view corresponding to a first implementation manner of a vibration plate and a fixing frame in a diaphragm mechanism of a receiver in Example 1;

[0061] Figure 4 A longitudinal cross-sectional schematic diagram of a second implementation of the receiver provided in Example 1;

[0062] Figure 5 for Figure 4 The receiver in the embodiment includes a structural schematic diagram of a reset auxiliary permanent magnet;

[0063] Figure 6 It is a top view schematic diagram of the receiver provided in Example 2 after removing the first shell (in order to reflect the first vibration area, the second vibration area and the transition area, the pronunciation membranes corresponding to the three areas are removed);

[0064] Figure 7 for Figure 6A schematic top view of a second embodiment of a fixing frame and a vibration plate of a diaphragm mechanism of a receiver;

[0065] Description of reference numerals:

[0066] 1-housing; 11-first housing; 12-second housing; 13-first cavity; 14-second cavity; 15-sound outlet hole; 16-tuning hole; 17-sound guide tube;

[0067] 2-diaphragm mechanism; 21-fixed frame; 22-vibration plate; 221-first vibration area; 222-second vibration area; 223-transition area; 23-sounding membrane; 24-first fixed end; 25-second fixed end; 26-third fixed end;

[0068] 311-first permanent magnet; 312-second permanent magnet; 313-core column; 32-coil; 331-first soft magnet; 332-second soft magnet; 333-third permanent magnet; 34-reset auxiliary permanent magnet; 35-pole shoe;

[0069] 4- Tuning pipe. DETAILED DESCRIPTION

[0070] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0071] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0072] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0073] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0074] Example 1

[0075] This embodiment provides a receiver, such as Figure 1 As shown, it includes a housing 1, a diaphragm mechanism 2 and an electromagnetic driving mechanism.

[0076] like Figure 1 As shown, the housing 1 includes a first shell 11 consisting of a first bottom surface and a side wall, and a second shell 12 consisting of a second bottom surface and a side wall; the second shell 12 is detachably buckled with the first shell 11 to enclose an inner cavity. The diaphragm mechanism 2 is arranged between the openings of the first shell 11 and the second shell 12, and divides the inner cavity of the housing 1 into a first cavity 13 close to the first bottom surface and a second cavity 14 close to the second bottom surface. That is, the inner cavity of the first shell 11 serves as the first cavity 13, and the inner cavity of the second shell 12 serves as the second cavity 14. The first shell 11 and the second shell 12 are preferably both made of a high-permeability magnetic alloy.

[0077] like Figure 1 As shown, the diaphragm mechanism 2 includes a fixed frame 21, a vibration plate 22 and a sound-producing membrane 23. The fixed frame 21 is fixed between the openings of the first shell 11 and the second shell 12, for example, by spot welding or adhesive bonding; the sound-producing membrane 23 is fixed on the surface of the fixed frame 21 on the side facing the first cavity 13; the vibration plate 22 is suspended in the fixed frame 21, and the sound-producing membrane 23 covers the vibration plate 22, so that the first cavity 13 and the second cavity 14 are sealed and separated.

[0078] For example, the sound-producing membrane 23 is glued to the fixed frame 21 to seal the reserved gap formed between the suspended end of the vibration plate 22 and the fixed frame 21, so that the first cavity 13 is sealed and separated from the second cavity 14. Of course, the sound-producing membrane 23 can also be glued to the side surface of the vibration plate 22 facing the first cavity 13.

[0079] like Figure 3 As shown, the vibration plate 22 is made of non-magnetic material, and includes a first vibration area 221 and a second vibration area 222. The first vibration area 221 and the second vibration area 222 are independently arranged in the fixed frame 21; one end (suspended end) of the first vibration area 221 and the second vibration area 222 facing each other is suspended in the fixed frame 21, and the other end is fixed to the fixed frame 21 through two first fixed ends 24 and two second fixed ends 25 on each end, and the sum of the widths of the two first fixed ends 24 is not equal to the sum of the widths of the two second fixed ends 25.

[0080] For example, the structures of the two vibration regions are the same, and the sum of the widths of the two second fixed ends 25 is greater than the sum of the widths of the two first fixed ends 24, so that the fixing forces of the first vibration region 221 and the second vibration region 222 to the fixed frame 21 are different, and thus the rigidity of the first vibration region 221 and the second vibration region 222 are different. The first vibration region 221 has low rigidity and is easy to vibrate, while the second vibration region 222 has high rigidity. Under the same electromagnetic driving force, the vibration frequency of the first vibration region 221 is higher than the vibration frequency of the second vibration region 222.

[0081] The essential reason for the different vibration frequencies of the two vibration regions is that the fixed ends of the two vibration regions are different, so that the natural vibration frequencies of the first vibration region 221 and the second vibration region 222 are different. The vibration frequency finally displayed by the first vibration region 221 (or the second vibration region 222) is the total vibration frequency after the natural vibration frequency of the first vibration region (or the second vibration region 222) and the vibration frequency of the first vibration region 221 (or the second vibration region 222) driven by the electromagnetic field are superimposed. That is, under the same electromagnetic driving force, without considering the natural vibration frequencies of the first vibration region 221 and the second vibration region 222, the vibration frequencies of the first vibration region 221 and the second vibration region 222 are the same; however, when there is no external force, the natural vibration frequencies of the first vibration region 221 and the second vibration region 222 cannot be reflected, so under the electromagnetic field drive, the vibration frequencies of the first vibration region 221 and the second vibration region 222 are finally reflected to be different.

[0082] like Figure 1 As shown, the electromagnetic driving mechanism is disposed in the second cavity 14 to generate an electromagnetic driving force to drive the suspended ends of the first vibration region 221 and the second vibration region 222 of the vibration plate 22 to perform reciprocating motions in the same direction and at different vibration frequencies.

[0083] Specifically, the electromagnetic drive mechanism includes a first permanent magnet 311, a second permanent magnet 312 and a coil 32. The first permanent magnet 311 is fixed on the surface of the first vibration region 221 on the side facing away from the pronunciation membrane 23; the second permanent magnet 312 is fixed on the surface of the second vibration region 222 on the side facing away from the pronunciation membrane 23, and the polarity of the end thereof on the same side as the first permanent magnet 311 is the same; for example, the polarity of the ends of the two permanent magnets facing the second bottom surface of the second shell 12 are both S poles; the coil 32 is fixed on the second bottom surface and is opposite to the first permanent magnet 311 and the second permanent magnet 312 and a required first gap is reserved. The first permanent magnet 311 and the second permanent magnet 312 are preferably magnetic steel. After the coil 32 is energized, the electromagnetic field generated by the coil 32 and the fixed magnetic fields of the first permanent magnet 311 and the second permanent magnet 312 form the above-mentioned electromagnetic driving force.

[0084] The electromagnetic driving mechanism of this structure generates an electromagnetic field when the coil 32 is energized. The first permanent magnet 311 and the second permanent magnet 312 respectively form two relatively independent driving units with the electromagnetic field. The first vibration area 221 and the second vibration area 222 have different rigidities due to the different fixed ends with the fixed frame 21. The two respectively form two generating flows with different frequency responses with the two driving units to realize the sound generation in the same receiver.

[0085] The specific driving process is as follows: when the coil 32 is powered in the forward direction, if the magnetic field direction of the generated electromagnetic field is toward one end of the first permanent magnet 311 and the second permanent magnet 312 as the S pole and the other end as the N pole, according to the principle that like charges repel each other, the first permanent magnet 311 and the second permanent magnet 312 are both subjected to repulsive force, and the first vibration area 221 and the second vibration area 222 are respectively driven to vibrate upward; on the contrary, when the coil 32 is powered in the reverse direction, the magnetic field direction of the electromagnetic field generated by the coil 32 is just reversed, and one end of the first permanent magnet 311 and the second permanent magnet 312 is toward the N pole, and according to the principle that opposite charges attract each other, the first vibration area 221 and the second vibration area 222 are respectively driven to vibrate downward, so as to realize the reciprocating vibration of the vibration plate 22.

[0086] like Figure 4 As shown, the electromagnetic drive mechanism also includes a reset auxiliary permanent magnet 34 arranged on the first bottom surface of the first shell 11. The polarity of the reset auxiliary permanent magnet 34 and the first permanent magnet 311 or the second permanent magnet 312 facing each other is opposite. For example, the end of the first permanent magnet 311 facing the reset auxiliary permanent magnet 34 is an N pole, and the polarity of the end of the reset auxiliary permanent magnet 34 facing the first permanent magnet 311 is an S pole. The reset auxiliary permanent magnet 34 applies an upward attraction to both the first permanent magnet 311 and the second permanent magnet 312. Since the magnetic field strength of the fixed magnetic field of the reset auxiliary permanent magnet 34 is smaller than the magnetic field strength of the electromagnetic field generated by the coil 32, when the coil 32 is energized, the strength of the electromagnetic field generated by the coil 32 is greater than the fixed magnetic field strength of the reset auxiliary permanent magnet 34. Driven by the electromagnetic field, the reciprocating vibration of the vibration plate 22 is realized. When the vibration plate 22 vibrates downward, the coil 32 is powered off, and the reset auxiliary permanent magnet 34 applies an upward attraction to the first permanent magnet 311 and the second permanent magnet 312, driving the first vibration region 221 and the second vibration region 222 to vibrate upward. The auxiliary vibration plate 22 quickly returns to its initial equilibrium state, thereby improving the sensitivity of the receiver.

[0087] The electromagnetic drive mechanism further includes a pole shoe 35 fixed on the second bottom surface, the pole shoe 35 having a groove with an opening facing one side of the vibration plate 22, and a magnetizing component fixed in the groove, for example, the magnetizing component is a core column 313 or an iron core, the coil 32 is sleeved on the core column 313 and fixed on the pole shoe 35, and the first permanent magnet 311 and the second permanent magnet 312 are respectively located in the area between the magnetizing component and the two arms of the pole shoe groove. The arrangement of the pole shoe 35 makes the magnetic field intensity of the electromagnetic field generated by the coil 32 more uniform, and the core column 313 or the iron core functions to concentrate the electromagnetic field generated by the coil 32 thereon, for example, if the polarity of the electromagnetic field generated by the coil 32 facing one end of the first permanent magnet 311 is the S pole, then the S pole is concentrated on the end of the core column 313 facing the first permanent magnet 311, and the N pole of the electromagnetic field is concentrated on the two arm ends of the pole shoe groove, so that the electromagnetic field applies a driving force to the first permanent magnet 311 and the second permanent magnet 312 more concentratedly.

[0088] like Figure 1 As shown in FIG. 1 , the above-mentioned receiver further includes a sound outlet 15 provided on the side wall of the first housing 11 and a sound guide tube 17 fixed on the outer surface of the housing 1 and including the sound outlet 15. When the vibration plate 22 vibrates, the sound diaphragm 23 is driven to agitate the air in the first cavity 13 to move, so that the first cavity 13 emits the desired sound, and the sound then enters the sound guide tube 17 through the sound outlet 15 and then propagates out. In addition, as Figure 1 As shown, the sound outlet 15 can also be opened on the first bottom surface of the first housing 11. Correspondingly, the sound guide tube 17 is arranged on the outer wall surface of the first bottom surface to include the sound outlet 15. Generally, the receiver has only one sound outlet 15.

[0089] The receiver also includes a tuning hole 16 provided on the side wall of the second shell 12, and a tuning tube 4 inserted into the tuning hole 16 and located in the second shell 12. The tuning tube and the tuning hole connect the second cavity 14 with the outside. When the vibration plate 22 vibrates upward, the air in the first cavity 13 is compressed, and the outside gas enters the second cavity 14 from the tuning tube 4, increasing the pressure of the gas in the second cavity 14, making it easier for the vibration plate 22 to vibrate upward. On the contrary, when the vibration plate 22 vibrates downward, the gas in the second cavity 14 is discharged to the outside through the tuning tube 4, reducing the pressure of the gas in the second cavity 14, making it easier for the vibration plate 22 to vibrate downward. The pronunciation and vibration sensitivity of the receiver are then adjusted by changing the pressure of the gas in the second cavity.

[0090] The receiver in this embodiment divides the vibration plate 22 into two vibration areas. The two vibration areas are independent of each other and are fixed in the fixed frame 21 through their respective fixed ends. At the same time, the fixed end structures of the two vibration areas are different, so that the rigidity of the two vibration areas is different and the natural vibration frequency is different. When driven by the same driving mechanism, the vibration directions of the two vibration areas are the same but the vibration frequencies are different, so as to realize the dual-tone zone function of a receiver. In the receiver assembly project, a modular assembly process can be formed to simplify the assembly process of the receiver.

[0091] The assembly process of the receiver in this embodiment (abbreviated as A assembly process) is:

[0092] S1: Pre-fix the first permanent magnet 311 and the second permanent magnet 312 on the surface of the first vibration region 221 and the second vibration region 222 of the diaphragm mechanism 2 on the side facing away from the sound producing membrane 23 to form a first module;

[0093] The tuning tube 4 is pre-installed on the tuning hole 16 in the second housing 12, the stem 313 is pre-fixed on the bottom surface of the groove of the pole shoe 35, the coil 32 is sleeved on the stem 313 and fixed on the pole shoe 35, and then the pole shoe 35 is fixed on the second bottom surface of the second housing 12 to form a second module;

[0094] The reset auxiliary permanent magnet 34 is fixed on the first bottom surface of the first shell 11 to form a third module;

[0095] S2: The fixing frame 21 of the diaphragm mechanism 2 is installed between the openings of the first shell 11 and the second shell 12 so that the coil 32 is opposite to the first permanent magnet and the second permanent magnet.

[0096] This assembly process divides the components of the receiver into three modules. The diaphragm mechanism 2 and the first permanent magnet 311 and the second permanent magnet 312 are pre-installed to form a first module. The pole shoe 35 and the core column 313, the coil 32, the tuning tube 4 and the second shell 12 are pre-installed to form a second module. The reset magnet and the first shell 11 form a third module. The three modules are then assembled to complete the modular assembly process of the receiver, thereby improving the assembly efficiency of the receiver.

[0097] As an alternative embodiment, the fixing frame 21 of the diaphragm mechanism 2 can also be fixed on the inner wall surface of the first shell 11 or the second shell 12. The assembly process of the receiver is different from the assembly process A in that: in step S2, the fixing frame 21 of the diaphragm mechanism 2 is installed on the inner wall surface of the first shell 11 or the inner wall surface of the second shell 12, and then the openings of the first shell 11 and the second shell 12 are fixedly connected. As a further variation, the diaphragm mechanism 2 can also be an existing diaphragm mechanism.

[0098] As an alternative embodiment, the number of the first fixed ends 24 of the first vibration region 221 may also be one, three, four, five, etc., and the number of the second fixed ends 25 of the second vibration region 222 may also be one, three, four, five, etc., as long as the sum of the widths of all the first fixed ends 24 is not equal to the sum of the widths of all the second fixed ends 25, so that the rigidity of the first vibration region 221 and the second vibration region 222 are different.

[0099] As a further variation, the sum of the widths of all first fixed ends 24 and the sum of the widths of all second fixed ends 25 may be the same, but in this case, the area of ​​the first vibration region 221 is not equal to the area of ​​the second vibration region 222. Under the same fixing force, the first vibration region 221 and the second vibration region 222 have different rigidities, and thus different natural vibration frequencies, thereby achieving dual-tone sounds in the same receiver. For example, the length of the second vibration region 222 is greater than the length of the first vibration region 221.

[0100] Alternatively, the materials of the first vibration region 221 and the second vibration region 222 can be changed. For example, both vibration regions are made of magnetic conductive materials, but one vibration region is made of high magnetic conductive materials and the other vibration region is made of low magnetic conductive materials, so that the two vibration regions vibrate at different frequencies under the same electromagnetic driving force. Alternatively, the two vibration regions can have the same rigidity but are subjected to different electromagnetic driving forces, so as to achieve different vibration frequencies of the two vibration regions. For example, the magnetic field strength of the first permanent magnet 311 is less than the magnetic field strength of the second permanent magnet 312. In short, under the cooperation of the electromagnetic field generated by the coil 32 and the two permanent magnets, the two vibration regions are made to vibrate back and forth in the same direction and at different vibration frequencies, so that dual-tone sound can be achieved. The assembly process of the receiver in this embodiment is consistent with the above-mentioned assembly process A.

[0101] As a further alternative embodiment, the tuning hole 16 can also be provided at other positions of the second housing 12, such as the second bottom surface of the second housing 12. As for the tuning tube 4, the length of the tuning tube 4 should not be too long, and only one end of the tuning tube 4 needs to extend into the second cavity 1414 to adjust the sound. As a further alternative embodiment, the above-mentioned tuning hole 16 can also be omitted, and correspondingly, in the assembly process, the tuning tube 4 does not need to be installed in step S1.

[0102] As an alternative embodiment, the electromagnetic drive mechanism may not be provided with the above-mentioned pole shoe 35, and the core column 313 may be directly fixed on the second shell 12, and the coil 32 may be sleeved on the core column 313. However, compared with the above-mentioned embodiment, the magnetic field strength of the electromagnetic field generated by the coil 32 after being energized is relatively uneven and concentrated, but it can also drive the two vibration areas to vibrate; as a further deformation, the core column 313 may not be provided, and the coil 32 may be directly fixed on the second shell 12. The electromagnetic field generated by the coil 32 directly drives the first permanent magnet 311 and the second permanent magnet 312 to vibrate reciprocatingly.

[0103] As an alternative embodiment, the electromagnetic drive mechanism may not include the above-mentioned reset auxiliary permanent magnet 34. When the coil 32 is powered off, the first vibration area 221 and the second vibration area 222 can also be restored to the initial state under the elastic effect of the vibration plate 22 itself, but the sensitivity is relatively low. The assembly process of the receiver in this embodiment is different from the A assembly process in that: in step S1, the first housing 11 is used as a separate module.

[0104] As a variation of the electromagnetic drive mechanism, Figure 5 As shown, the electromagnetic drive mechanism includes a first soft magnet 331, a second soft magnet 332, a coil 32 and a third permanent magnet 333. The first soft magnet 331 replaces the first permanent magnet 311 and is fixed on the surface of the first vibration region 221 on the side facing away from the pronunciation membrane 23; the second soft magnet 332 replaces the second permanent magnet 312 and is fixed on the surface of the second vibration region 222 on the side facing away from the pronunciation membrane 23, and the first soft magnet 331 and the second soft magnet 332 have the same polarity after being magnetized in the magnetic field; the coil 32 is fixed on the second bottom surface of the second housing 12, and is opposite to the first soft magnet 331 and the second soft magnet 332; the third permanent magnet 333 is arranged in the inner hole of the coil 32; after the coil 32 is energized, the coil 32 generates an electromagnetic field and forms an electromagnetic driving force in cooperation with the fixed magnetic field of the third permanent magnet 333.

[0105] The principle of the electromagnetic drive mechanism of this structure driving the vibration plate 22 to vibrate is:

[0106] In the initial state, the fixed magnetic field of the third permanent magnet 333 applies a downward adsorption force to both the first soft magnet 331 and the second soft magnet 332, so that both the first vibration region 221 and the second vibration region 222 are bent downward; assuming that the bottom end of the third permanent magnet 333 is an N pole and the top end is an S pole, if the coil 32 is powered in the positive direction, the magnetic field direction of the electromagnetic field generated by the coil 32 is consistent with the magnetic field direction of the fixed magnetic field (for example, the end facing the first soft magnet 331 is an S pole, and the end facing the second bottom surface is an N pole), thereby increasing the attraction of the fixed magnetic field of the third permanent magnet 333 to the first soft magnet 331 and the second soft magnet 332, so that the first soft magnet 331 and the second soft magnet 332 drive the first vibration region 221 and the second vibration region 222 respectively. 2 continues to vibrate downward, and the bending amplitudes of the first vibration region 221 and the second vibration region 222 increase; when reverse power is applied to the coil 32, the magnetic field direction of the electromagnetic field generated by the coil 32 (for example, the end facing the first soft magnet 331 is the N pole, and the end facing the second bottom surface is the S pole) is opposite to the fixed magnetic field direction of the third permanent magnet 333, so as to weaken the magnetic field strength of the fixed magnetic field of the third permanent magnet 333, so that the attraction of the fixed magnetic field of the third permanent magnet 333 to the first soft magnet 331 and the second soft magnet 332 is reduced, and then the first soft magnet 331 and the second soft magnet 332 drive the first vibration region 221 and the second vibration region 222 to vibrate upward respectively, so that the vibration plate 22 performs a reciprocating vibration process in the vertical direction, thereby driving the sounding membrane 23 to agitate the air to make a sound.

[0107] As a further variation, the electromagnetic drive mechanism also includes the above-mentioned reset auxiliary permanent magnet 34, and the polarity of the end facing each other between the reset auxiliary permanent magnet 34 and the third permanent magnet 333 is opposite; the magnetic field strength of the fixed magnetic field of the reset auxiliary permanent magnet 34 is less than the magnetic field strength of the fixed magnetic field of the third permanent magnet 333, then the combined force of the third permanent magnet 333 and the reset auxiliary permanent magnet 34 on the vibration plate 22 is always downward, and will not affect the normal reciprocating vibration of the vibration plate 22; when the vibration plate 22 vibrates downward, the coil 32 is powered off, and the vibration plate 22 vibrates upward. At this time, the reset auxiliary permanent magnet 34 applies an upward adsorption force to both the first soft magnet 331 and the second soft magnet 332, thereby assisting the first vibration area 221 and the second vibration area 222 to return to the initial state more quickly, thereby increasing the sensitivity of the receiver.

[0108] As a further replaceable embodiment, the number of the first vibration areas 221 in the vibration plate 22 can also be two, three, four, etc., and the number of the second vibration areas 222 can also be two, three, four, etc. The specific number is determined according to actual needs. It is only necessary to set at least one first vibration area 221 and at least one second vibration area 222 to form two sound zones with different vibration frequencies in the receiver.

[0109] As a further variation, the vibration plate 22 may further include at least one third vibration region, so that there are three sound regions with different vibration frequencies in the same receiver; or at least one fourth vibration region, or at least one fifth vibration region, and so on may be provided, so that four sound regions with different vibration frequencies, or five sound regions with different vibration frequencies are formed in the same receiver, or, as needed, the vibration plate 22 may include multiple vibration regions, and the multiple vibration regions are independent of each other and can be fixed to the fixed frame 21 by their respective fixed ends. By changing the structure of each vibration region itself, or the structure of the fixed end, or by electromagnetic driving force, etc., under the drive of the electromagnetic driving force, the multiple vibration regions are made to reciprocate in the same direction and at different frequencies, thereby realizing the function of forming multiple sound regions with multiple vibration frequencies in the same receiver.

[0110] Example 2

[0111] This embodiment provides a receiver, such as Figure 6 and Figure 7 As shown, compared with the receiver provided in Example 1, the only difference is that the fixing method of the first vibration area 221 and the second vibration area 222 is different, the vibration plate 22 also includes a transition area 223, the first vibration area 221 and the second vibration area 222 are fixed to the fixed frame 21 through the transition area 223, and under the drive of the electromagnetic drive mechanism, the transition area 223 and the first vibration area 221 and the second vibration area 222 make reciprocating vibrations in the same direction and at different frequencies.

[0112] Both ends of the transition region 223 are fixed to the fixed frame 21 through a third fixed end 26 respectively; the first vibration region 221 and the second vibration region 222 are located on both sides of the transition region 223, and the first fixed end 24 and the second fixed end 25 are fixed on both sides of the third fixed end 26 respectively, so that the first vibration region 221 and the second vibration region 222 are suspended in the fixed frame 21, and the sum of the widths of all the first fixed ends 24 is not equal to the sum of the widths of the second fixed ends 25, so that the first vibration region 221 and the second vibration region have different rigidity on the fixed frame 21.

[0113] In the receiver of this embodiment, the first vibration region 221 and the second vibration region 222 are not directly fixedly connected to the fixed frame 21, but are indirectly connected to the fixed frame 21 through the transition region 223. The two vibration regions are not independent of each other, so the first vibration region 221, the second vibration region 222 and the transition region 223 can be formed as one piece, which is convenient for the preparation of the vibration plate 22; or the vibration plate 22 and the fixed frame 21 can be formed as one piece, and the required vibration regions and fixed ends can be directly cut out on one plate according to the designed areas of the first vibration region 221, the second vibration region 222 and the transition region 223, which is convenient for the preparation of the diaphragm mechanism 2. The driving method of this receiver is the same as that in Example 1 and will not be repeated here.

[0114] In addition, since the transition area 223 is fixed together with the first vibration area 221 and the second vibration area 222, when the first vibration area 221 and the second vibration area 222 vibrate, the transition area 223 will inevitably be driven to vibrate. However, both ends of the transition area 223 are fixed on the fixed frame 21, so that the rigidity of the transition area is different from that of the first vibration area 221 and the second vibration area 222. Therefore, the vibration frequencies of the transition area 223, the first vibration area 221 and the second vibration area 222 that vibrate in the same direction are different, thereby forming three pronunciation areas with different vibration frequencies in the same receiver.

[0115] As an alternative embodiment, a permanent magnet or a soft magnet may be fixed on the surface of the transition area 223 on the side facing away from the pronunciation membrane 23. In this case, the transition area not only vibrates along with the first vibration area 221 and the second vibration area 222, but also vibrates under its own driving unit.

[0116] As an alternative embodiment, the first fixed end 24 can also be fixed on the transition area 223, or the second fixed end 25 can be fixed on the transition area 223; or, both the first fixed end 24 and the second fixed end 25 are fixed on the transition area 223, which can also realize three pronunciation areas with different vibration frequencies.

[0117] As a further alternative implementation, similar to implementation 1, the number of first fixed ends 24 can be one, three, four, five, etc., and the number of second fixed ends 25 can be one, three, four, five, etc., as long as the sum of the widths of all first fixed ends 24 is not equal to the sum of the widths of all second fixed ends 25, so that the rigidity of the two vibration regions is different. The number of settings is determined according to actual needs.

[0118] As a further variation, the number of the first vibration region 221 can be two, three, four, etc., and the number of the second vibration region 222 can be two, three, four, etc., and both can be set according to actual needs. It is sufficient that the first vibration region 221 and the second vibration region 222 reciprocate in the same direction and at different vibration frequencies. As a further variation, the number of the transition region can be two, three, four, etc., and the first vibration region 221 and the second vibration region 222 are set at both ends of the transition region.

[0119] As a further variation, the vibration plate 22 may also include at least one third vibration region, which is also fixed to the transition region 223 through its own fixed end. By changing the structure of the fixed end, the third vibration region has the same vibration direction as the first vibration region 221, the second vibration region 222, and the transition region 223, but has different vibration frequencies, thereby realizing four sound zones with different vibration frequencies in the same receiver. Of course, at least one fourth vibration region, or a fifth vibration region, etc. may also be provided to form multiple sound zones with different vibration frequencies on the vibration plate 22. The above-mentioned multiple vibration regions may be fixed to the fixed frame 21 through one transition region 223, or may be fixed to the fixed frame 21 through multiple transition regions 223. The arrangement of the multiple vibration regions and the transition region 223 may be designed according to actual needs.

[0120] As a further variation, similar to Example 1, by changing the structure of each vibration area itself, such as the area and material, or the electromagnetic driving force in the driving mechanism, it is possible to achieve the same vibration direction but different vibration frequencies in multiple vibration areas, so as to form multiple pronunciation areas in the same receiver.

[0121] In the assembly process of the receiver in all the above-mentioned embodiments, since only the structure of the vibration plate 22 is replaced and other structures are not replaced, the corresponding assembly process is consistent with the assembly process in Example 1.

[0122] On the basis of Example 1 and Example 2, as an alternative implementation, the electromagnetic driving mechanism can also be other structures in the prior art, which only needs to be arranged in the inner cavity of the shell 1 and can generate an electromagnetic driving force to drive the vibration plate 22 to vibrate reciprocatingly.

[0123] On the basis of Example 1 and Example 2, as an alternative implementation, the vibration plate 22 includes at least one first vibration area 221 and at least one second vibration area 222. In Example 1, the first vibration area 221 and the second vibration area 222 are independently fixed in the fixing frame 21; in Example 2, the first vibration area 221 and the second vibration area 222 are fixed together through a transition area 223; as a variation, the vibration plate 22 includes multiple first vibration areas 221 and multiple second vibration areas 222, part of the first vibration areas 221 and part of the second vibration areas 222 are independently arranged, and another part of the first vibration area 221 and another part of the second vibration area 222 are connected together through the transition area 223, that is, the fixing method of the vibration area in Example 1 is combined with the fixing method of the vibration area in Example 2.

[0124] In addition, it should be noted that Figure 3 As shown, the width direction of the fixed end in the application document refers to the direction indicated by the arrow between the two vibration areas in the figure.

[0125] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A receiver, characterized in that: include: A housing (1) having an inner cavity; A diaphragm mechanism (2) is arranged in the inner cavity, dividing the inner cavity of the outer shell (1) into a first cavity (13) and a second cavity (14); the diaphragm mechanism (2) comprises a fixing frame (21) mounted on the outer shell (1), and a vibration plate (22) suspended in the fixing frame (21); the vibration plate (22) comprises at least one first vibration region (221) and at least one second vibration region (222); An electromagnetic drive mechanism, arranged in the inner cavity of the housing (1), for generating an electromagnetic drive force to drive the first vibration region (221) and the second vibration region (222) to perform reciprocating motion in the same direction and at different vibration frequencies; The first vibration region (221) and the second vibration region (222) are independently arranged in the fixing frame (21).

2. The receiver according to claim 1, characterized in that: One end of the first vibration region (221) and the second vibration region (222) are suspended in the fixing frame (21), and the other end is fixed to the fixing frame (21) via at least one first fixing end (24) and at least one second fixing end (25) on each of the first vibration region (221) and the second vibration region (222); The electromagnetic driving mechanism drives the suspended ends of the first vibration region (221) and the second vibration region (222) to perform reciprocating vibration.

3. The receiver according to claim 2, characterized in that: One end of the first vibration region (221) and the second vibration region (222) facing each other is suspended in the fixing frame (21), and the other end is respectively fixed on the fixing frame (21).

4. The receiver according to claim 2, characterized in that: The vibration plate (22) further comprises a transition region (223), and the first vibration region (221) and the second vibration region (222) are fixed on the fixing frame (21) via the transition region (223).

5. The receiver according to claim 4, characterized in that: Both ends of the transition area (223) are respectively fixed to the fixing frame (21) via at least one third fixing end (26); The first vibration region (221) and the second vibration region (222) are located on both sides of the transition region (223), and the first fixed end (24) and the second fixed end (25) are fixed on the transition region (223) and / or the third fixed end (26).

6. The receiver according to any one of claims 2 to 5, characterized in that: The sum of the widths of all the first fixed ends (24) of the first vibration region (221) is not equal to the sum of the widths of all the second fixed ends (25) of the second vibration region (222); and / or The area of ​​the first vibration region (221) is not equal to the area of ​​the second vibration region (222).

7. The receiver according to any one of claims 1 to 5, characterized in that: The electromagnetic drive mechanism is located in the second cavity (14) and comprises A first permanent magnet (311) is fixed on a surface of the first vibration region (221) on one side facing the second cavity; A second permanent magnet (312) is fixed on a surface of the second vibration region (222) on one side facing the second cavity, and has the same polarity as an end of the second permanent magnet (311) located on the same side; The coil (32) is fixed on the housing (1) so as to be opposite to the first permanent magnet (311) and the second permanent magnet (312) and to reserve a required first gap.

8. The receiver according to claim 7, characterized in that: The electromagnetic drive mechanism further comprises a pole shoe (35), the pole shoe (35) having a groove opening toward one side of the vibration plate (22), and a magnetizing component fixed in the groove; The coil (32) is sleeved on the magnetizing component, and the first permanent magnet (311) and the second permanent magnet (312) are respectively located in the area between the magnetizing component and the two arms of the pole shoe groove.

9. The receiver according to any one of claims 1 to 5, characterized in that: The electromagnetic drive mechanism is located in the second cavity (14) and comprises A first soft magnetic body (331) is fixed on a surface of the first vibration region (221) on one side facing the second cavity; A second soft magnet (332) is fixed on a surface of the second vibration region (222) facing the second cavity, and has the same polarity as the first soft magnet (331) at one end located on the same side after being magnetized in a magnetic field; A coil (32) is fixed on the housing (1) and is opposite to the first soft magnetic body (331) and the second soft magnetic body (332) and a required first gap is reserved; The third permanent magnet (333) is arranged in the inner hole of the coil (32).

10. The receiver according to claim 7, characterized in that: The electromagnetic drive mechanism further comprises a reset auxiliary permanent magnet (34) arranged on a wall surface of the housing (1) corresponding to the first cavity (13); When corresponding to the first permanent magnet (311) and the second permanent magnet (312), the polarity of the end of the resetting auxiliary permanent magnet (34) facing the first permanent magnet (311) or the second permanent magnet (312) is opposite; and the magnetic field strength of the fixed magnetic field of the resetting auxiliary permanent magnet (34) is smaller than the magnetic field strength of the electromagnetic field generated by the coil (32).

11. The receiver according to claim 9, characterized in that: The electromagnetic drive mechanism also includes a resetting auxiliary permanent magnet (34) arranged on the wall surface of the housing (1) corresponding to the first cavity (13); when corresponding to the first soft magnet (331) and the second soft magnet (332), the polarity of the ends of the resetting auxiliary permanent magnet (34) and the third permanent magnet (333) facing each other is opposite; the magnetic field strength of the fixed magnetic field of the resetting auxiliary permanent magnet (34) is smaller than the magnetic field strength of the fixed magnetic field of the third permanent magnet (333).

12. The receiver according to any one of claims 1 to 5 or 10 or 11, characterized in that: The shell (1) is provided with a sound outlet hole (15) and a tuning hole (16) on the wall surface corresponding to the first cavity (13) and the wall surface of the second cavity (14), respectively; it also includes a tuning tube (4) embedded in the tuning hole (16) and located in the second cavity (14), and a sound guide tube (17) arranged on the outer surface of the shell (1) and including the sound outlet hole (15).

13. The receiver according to any one of claims 1 to 5 or 10 or 11, characterized in that: The housing comprises a first shell (11) consisting of a first bottom surface and a side wall, and a second shell (12) consisting of a second bottom surface and a side wall; the second shell (12) is detachably fastened to the first shell (11) to enclose the inner cavity.

14. The receiver according to any one of claims 1 to 5 or 10 or 11, characterized in that: The vibration plate (22) further comprises at least one third vibration region, which, under the action of the electromagnetic drive mechanism, reciprocates with the first vibration region (221) and the second vibration region (222) in the same direction and at different frequencies.

15. A receiver assembly process, characterized in that: The steps include: S11: pre-fixing a first permanent magnet (311) and a second permanent magnet (312) respectively on the surface of a first vibration region (221) and a second vibration region (222) of a vibration plate (22) in a vibration membrane mechanism (2) on a side facing away from the sound producing membrane (23); The coil (32) is pre-fixed in the second housing (12); S12: installing the fixing frame (21) of the diaphragm mechanism (2) on the inner wall surface of the first shell (11) or the second shell (12) so that the coil (32) is opposite to the first permanent magnet (311) and the second permanent magnet (312) and a required gap is reserved; and then the first shell (11) and the second shell (12) are fixedly connected; Alternatively, the fixing frame (21) of the diaphragm mechanism (2) is installed between the openings of the first shell (11) and the second shell (12), so that the coil (32) is opposite to the first permanent magnet (311) and the second permanent magnet (312) and a required gap is reserved; The first vibration area (221) and the second vibration area (222) are independently arranged, and the first vibration area (221) and the second vibration area (222) perform reciprocating vibrations in the same direction and at different vibration frequencies, thereby forming two pronunciation areas with different vibration frequencies in the same receiver.

16. The receiver assembly process according to claim 15, characterized in that: The receiver also includes a pole shoe (35) having a groove; Corresponding to the first permanent magnet (311) and the second permanent magnet (312), in step S11, a magnetizing component is provided in the groove of the pole shoe (35), the coil (32) is sleeved on the magnetizing component, and then the pole shoe (35) is installed on the second shell (12).

17. A receiver assembly process, characterized in that: The steps include: S21: pre-fixing a first soft magnetic body (331) and a second soft magnetic body (332) respectively on the surface of a first vibration region (221) and a second vibration region (222) of a vibration plate (22) in a vibration membrane mechanism (2) on a side facing away from the sound producing membrane (23); Pre-installing the third permanent magnet (333) on the second housing (12), and then sleeve-mounting the coil (32) on the third permanent magnet (333); S22: Installing the fixing frame (21) of the diaphragm mechanism (2) on the inner wall surface of the first shell (11) or the second shell (12) so that the coil (32) and the third permanent magnet (333) are opposite to the first soft magnet (331) and the second soft magnet (332) and a required gap is reserved; then the first shell (11) and the second shell (12) are fixedly connected; Alternatively, the fixing frame (21) of the diaphragm mechanism (2) is fixed between the openings of the first shell (11) and the second shell (12), so that the coil (32) is opposite to the first soft magnetic body (331) and the second soft magnetic body (332) and a required gap is reserved; The first vibration area (221) and the second vibration area (222) are independently arranged, and the first vibration area (221) and the second vibration area (222) perform reciprocating vibrations in the same direction and at different vibration frequencies, thereby forming two pronunciation areas with different vibration frequencies in the same receiver.

18. The receiver assembly process according to claim 17, characterized in that: The receiver also includes a pole shoe (35) having a groove; corresponding to the first soft magnet (331) and the second soft magnet (332), in step S21, a third permanent magnet (333) is pre-fixed in the groove of the pole shoe (35), and then the coil (32) is sleeved on the third permanent magnet (333), and then the pole shoe (35) is installed on the second shell.

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