Receiver and assembly method thereof

Abstract

The present invention discloses a receiver and an assembly method thereof. The receiver includes a shell and a diaphragm mechanism. A first magnetic generating component and a second magnetic generating component, the diaphragm mechanism is fixed between the first shell and the second shell, and the inner cavity of the shell is divided into a first cavity and a second cavity. The first magnetic generating component provides a first fixed magnetic field for the first cavity; the second magnetic generating component provides a second fixed magnetic field for the second cavity. The diaphragm mechanism has an extension portion extending out of the shell, and the extension portion is sleeved with an electromagnetic coil. The assembly method includes: fixing the first magnetic generating component in the first shell; fixing the second magnetic generating component in the second shell; assembling and fixing the first shell and the second shell, and fixing the diaphragm mechanism between the first shell and the second shell at the same time; sleeved with the electromagnetic coil on the extension portion of the diaphragm mechanism. The electromagnetic coil of the receiver provided by the present invention does not occupy the space in the shell, reduces the thickness of the receiver, and is easy to assemble.

Description

Technical Field

[0001] The present invention relates to the technical field of receivers, and in particular to a receiver and an assembling method thereof. Background Art

[0002] A receiver is a miniature electroacoustic device that converts audio electrical signals into sound signals without sound leakage to achieve audio playback. It is widely used in portable electronic devices such as mobile phones, laptops, headphones, and hearing aids.

[0003] According to the working principle, receivers can be divided into dynamic type, electromagnetic type (moving iron type), piezoelectric type, carbon particle type, etc. Among them, the moving iron type receiver is widely used due to its stable frequency response curve and high sensitivity. The working principle of the moving iron type receiver is electromagnetic energy conversion, that is, the sound is transmitted to the electromagnetic coil in the form of an AC signal. The electromagnetic coil generates an electromagnetic field to act on the balanced armature. The magnets on both sides of the balanced armature drive the balanced armature to vibrate under the action of the magnetic field. One end of the balanced armature is connected to the diaphragm through a guide pin. The diaphragm vibrates at a corresponding frequency under the vibration of the balanced armature, thereby arousing the surrounding air to move accordingly and reproduce the sound.

[0004] When assembling a current moving-arm receiver, the coil is generally placed on the vibrating end of the balanced armature, and then the non-vibrating end of the balanced armature is fixed in the housing. After that, the two ends of the diaphragm are manually fixed to the inner wall of the housing, and the vibrating parts of the diaphragm and the balanced armature are aligned. Finally, the diaphragm and the vibrating end of the balanced armature are connected by a guide pin or a transmission rod. The moving-arm receiver in the prior art has the following defects:

[0005] 1. The vibrating end of the balanced armature is connected to the diaphragm through a transmission rod or a guide pin, which increases the thickness of the inside of the receiver; the coil is mounted on the vibrating end of the balanced armature and arranged relative to the diaphragm up and down. In order to prevent the coil from contacting the diaphragm when the balanced armature vibrates, the space between the vibrating end of the balanced armature and the diaphragm needs to be further expanded, which undoubtedly further increases the thickness of the inside of the receiver.

[0006] 2. The diaphragm needs to be manually fixed on the inner wall of the shell, and then connected to the vibration end of the balancing armature through transmission equipment such as transmission rods or guide pins. This leads to complicated assembly process, low assembly efficiency, and long time consumption. In addition, in later maintenance or performance testing, the entire device needs to be disassembled and assembled, which is very inconvenient to operate. Summary of the invention

[0007] Therefore, the technical problem to be solved by the present invention is to overcome the technical defects of the prior art moving-iron receiver that it is relatively thick and complicated to assemble, thereby providing a receiver that is thin and easy to assemble.

[0008] The invention also provides a method for assembling a receiver.

[0009] To this end, the present invention provides a receiver, comprising:

[0010] The housing comprises a first housing and a second housing, wherein the first housing is detachably engaged with the second housing to form an inner cavity;

[0011] A diaphragm mechanism is fixed between the first shell and the second shell, and divides the inner cavity of the shell into a first cavity and a second cavity;

[0012] A first magnetic generating element, providing a first fixed magnetic field for the first cavity;

[0013] A second magnetic generating member provides a second fixed magnetic field for the second cavity, wherein the first fixed magnetic field in the first cavity and the second fixed magnetic field in the second cavity have opposite polarities at one end close to the diaphragm mechanism;

[0014] The diaphragm mechanism has an extension portion extending out of the shell, and the extension portion is sleeved with an electromagnetic coil.

[0015] Preferably, the diaphragm mechanism includes a sound-generating membrane and a vibration-generating device for driving the sound-generating membrane to vibrate, and the vibration-generating device has the extending portion.

[0016] Preferably, the vibration generating device comprises:

[0017] A fixing frame, having a hollow through hole in the middle and the extending portion;

[0018] An elastic vibration plate is located inside the hollow through hole, one end of which is fixed to the fixing frame and the other end is suspended in the air;

[0019] The fixing frame and the elastic vibration plate are both made of magnetic conductive materials;

[0020] The sound producing membrane is fixed to the fixing frame, covers the hollow through hole, and is opposite to and connected to the elastic vibration plate.

[0021] Preferably, the fixing frame is in a "convex" shape.

[0022] Preferably, the fixing frame is fixed to the buckled sealing portion of the first shell and the second shell.

[0023] Preferably, an anti-magnetic cover is provided outside the electromagnetic coil.

[0024] Preferably, the first magnetic generating element is a first permanent magnet, which is fixed in the first cavity; and the second magnetic generating element is a second permanent magnet, which is fixed in the second cavity.

[0025] The present invention also provides a method for assembling the above-mentioned receiver, comprising the following steps:

[0026] Fixing the first magnetic generating element in the first shell;

[0027] Fixing the second magnetic generating element in the second housing;

[0028] Assemble and fix the first shell and the second shell, and fix the diaphragm mechanism between the first shell and the second shell;

[0029] The electromagnetic coil is sleeved on the extension part of the diaphragm mechanism.

[0030] Preferably, the step of fixing the diaphragm mechanism between the first shell and the second shell is specifically: fixing the outer edge of the fixing frame in the diaphragm mechanism to the buckled sealing portion of the first shell and the second shell.

[0031] Preferably, after the step of sleeve-arranging the electromagnetic coil on the extension portion of the diaphragm mechanism, the method further includes the following steps:

[0032] An anti-magnetic cover is arranged on the outer sleeve of the electromagnetic coil.

[0033] The technical solution of the present invention has the following advantages:

[0034] 1. The receiver provided by the present invention includes a shell, a diaphragm mechanism, a first magnetic generating component and a second magnetic generating component. The shell is composed of a detachable first shell and a second shell. The diaphragm mechanism divides the inner cavity of the shell into a first cavity and a second cavity. The first magnetic generating component provides a first fixed magnetic field for the first cavity, and the second magnetic generating component provides a second fixed magnetic field for the second cavity. The polarities of the two ends close to the diaphragm mechanism are opposite. The diaphragm mechanism has an extension portion extending out of the shell, and the extension portion is covered with an electromagnetic coil.

[0035] When positive electricity is passed through the electromagnetic coil mounted on the extension part of the diaphragm mechanism, the electromagnetic coil will generate a variable magnetic field. Since the first cavity and the second cavity on both sides of the diaphragm mechanism respectively have the first fixed magnetic field and the second fixed magnetic field, and the first fixed magnetic field and the second fixed magnetic field have opposite polarities close to the end of the diaphragm mechanism, the variable magnetic field will be affected by the magnetic field attraction of any one of the first fixed magnetic field and the second fixed magnetic field and the repulsive force of the other magnetic field, thereby causing the diaphragm mechanism to vibrate to one side. When reverse electricity is passed through the electromagnetic coil, the magnetic field direction of the variable magnetic field changes. Similarly, the diaphragm mechanism vibrates to the opposite side. This cycle is repeated to achieve the up and down reciprocating vibration and sound generation of the diaphragm mechanism.

[0036] In a receiver of this structure, the electromagnetic coil is sleeved on an extension of the diaphragm mechanism. Since the extension is located outside the shell, the electromagnetic coil in the receiver provided by the present invention does not occupy the space in the shell, which greatly reduces the thickness of the receiver. In addition, when installing the receiver, the traditional method is to first sleeve the coil on the armature, and then fix the balanced armature with the coil sleeved on it in the shell. At this time, the balanced armature has a large volume due to the coil sleeved on it, which is inconvenient to assemble. The present invention first fixes the diaphragm mechanism between the first shell and the second shell, and then installs the electromagnetic coil on its extension. Compared with the traditional method, this assembly is more convenient and reduces the difficulty of assembling the diaphragm mechanism.

[0037] In addition, the diaphragm mechanism is fixed as a whole between the first shell and the second shell, and the inner cavity of the shell is divided into a first cavity and a second cavity. Compared with the traditional method of connecting the diaphragm and the armature through transmission equipment such as a transmission rod or a guide pin, this structure, on the one hand, combines the diaphragm and the armature into a whole, eliminating the transmission equipment and greatly reducing the thickness of the receiver. On the other hand, when assembling the receiver, it is only necessary to fix the diaphragm mechanism as a whole between the first shell and the second shell, without manually fixing the diaphragm on the shell and then connecting the diaphragm to the armature through the transmission equipment. The structure is very simple, which greatly simplifies the assembly process, reduces the difficulty of assembly, and improves assembly efficiency. In addition, for later maintenance or performance testing, it is only necessary to disassemble the diaphragm mechanism, which is very convenient to operate.

[0038] 2. The receiver provided by the present invention has a diaphragm mechanism including a sound-generating membrane and a vibration-generating device. The vibration-generating device can drive the sound-generating membrane to vibrate and produce sound, and the vibration-generating device has an extension portion. In the receiver of this structure, the vibration-generating device is divided into two parts, one part is fixed in the shell, fixedly connected to the sound-generating membrane, and used to drive the sound-generating membrane to vibrate and produce sound, and the other part extends outside the shell and is used to connect to the electromagnetic coil. When alternating positive and reverse currents are passed through the electromagnetic coil, a changing magnetic field is generated on the vibration-generating device, which then interacts with the fixed magnetic field in the shell, driving the sound-generating membrane to vibrate up and down and produce sound.

[0039] 3. The receiver provided by the present invention, the vibration generating device includes a fixed frame and an elastic vibration plate, one end of the elastic vibration plate is fixed in the hollow through hole of the fixed frame, and the other end is suspended in the hollow through hole, the sound producing membrane is fixed to the fixed frame and covers the hollow through hole, and is opposite to and connected to the elastic vibration plate, and the fixed frame has an extension portion, the electromagnetic coil is sleeved on the extension portion of the fixed frame, and the fixed frame and the elastic vibration plate are both made of magnetic conductive materials.

[0040] In the receiver of this structure, since both the fixed frame and the elastic vibration plate are magnetically conductive, when the electromagnetic coil set on the extension of the fixed frame is supplied with positive or reverse electricity, the magnetic field generated by the electromagnetic coil will be transmitted to the fixed frame and the elastic vibration plate, and then interact with the fixed magnetic field inside the shell. Since the middle of the fixed frame has a hollow through hole, the elastic vibration plate is located inside the hollow through hole, and one end is connected to the fixed frame and the other end is suspended. Therefore, under the drive of the magnetic field force of the first fixed magnetic field and the second fixed magnetic field, the suspended end of the elastic vibration plate can reciprocate up and down in the hollow through hole. Since the sound-generating membrane is fixed on the fixed frame to cover the hollow through hole and connected to the elastic vibration plate, when the elastic vibration plate vibrates, it can drive the sound-generating membrane to vibrate together, and then drive the air in the cavity to produce sound. The diaphragm mechanism of this structure is relatively simple in structure, and during the assembly process or later maintenance and performance testing, it only needs to fix the fixed frame in the inner cavity of the shell or remove the fixed frame from the inner cavity of the shell to achieve the installation or disassembly of the entire diaphragm mechanism. The operation is very convenient and can improve the operation efficiency.

[0041] 4. The receiver provided by the present invention has a fixed frame in the shape of a "convex" character. Since the electromagnetic coil needs to occupy a certain space, when the electromagnetic coil is sleeved on the extension part of the fixed frame, the space occupied by the extension part will inevitably increase. The present invention reduces the width of the extension part of the fixed frame, that is, reserves a corresponding winding space for the electromagnetic coil, so that the electromagnetic coil is installed behind the extension part, and the width and height occupied by the extension part as a whole match the shell, which is convenient for installation on the one hand, and minimizes the overall volume of the receiver to the greatest extent on the other hand, improving its portability.

[0042] 5. In the receiver provided by the present invention, the fixing frame is fixed to the buckle seal of the first shell and the second shell. That is, when assembling the receiver, the diaphragm mechanism can be installed by fixing the fixing frame between the first shell and the second shell when the first shell and the second shell are buckled and assembled, and the assembly process is very simple.

[0043] 6. The receiver provided by the present invention is provided with an anti-magnetic cover outside the electromagnetic coil. The anti-magnetic cover prevents the magnetic field generated by the electromagnetic coil from leaking out on the one hand, and concentrates the magnetic field generated by the electromagnetic coil within the anti-magnetic cover to form an electromagnetic field loop on the other hand; in addition, it makes the force between the magnetic fields stronger and the vibration amplitude of the diaphragm mechanism larger, thereby improving the sound effect of the receiver.

[0044] 7. The assembly method of the above-mentioned receiver provided by the present invention first fixes the first magnetic generating component in the first shell to form a first module, fixes the second magnetic generating component in the second shell to form a second module, and then assembles the first module and the second module together, and at the same time fixes the diaphragm mechanism as the third module between the first shell and the second shell, and finally sets the electromagnetic coil as the fourth module on the extension part of the diaphragm mechanism, thus completing the assembly process of the entire receiver. Since the first module, the second module and the third module are assembled separately and can be carried out at the same time, a lot of assembly time is saved and the assembly efficiency is improved. In addition, the electromagnetic coil is later mounted on the diaphragm mechanism, which is more convenient to assemble than the traditional method of fixing the balancing armature with the coil on the shell together, and reduces the difficulty of assembling the diaphragm mechanism. In addition, the diaphragm mechanism is fixed as a whole between the first shell and the second shell, and the inner cavity of the shell is divided into a first cavity and a second cavity. Compared with the traditional method of first sticking the diaphragm to the inner wall of the shell and then connecting the diaphragm and the armature through transmission equipment such as transmission rods or guide pins, the assembly process of the present invention is simpler, the assembly difficulty is greatly reduced, the assembly efficiency is greatly improved, and during later maintenance or performance testing, it is only necessary to disassemble the diaphragm mechanism, which is very convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] 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.

[0046] Figure 1 A front view of the receiver provided by the present invention;

[0047] Figure 2 A side view of a receiver provided by the present invention;

[0048] Figure 3 A partial top view of the receiver provided by the present invention;

[0049] Description of reference numerals:

[0050] 1-shell; 101-first shell; 102-second shell; 103-sound outlet; 104-first cavity; 105-second cavity; 106-first magnetic generating element; 107-second magnetic generating element; 108-tuning tube; 109-sound guide tube;

[0051] 2-diaphragm mechanism; 201-extension part; 202-electromagnetic coil; 203-sounding membrane; 204-vibration generating device; 2041-fixing frame; 2042-hollow through hole; 2043-elastic vibration plate; 205-antimagnetic cover. DETAILED DESCRIPTION

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] Example 1

[0057] This embodiment provides a receiver, such as Figure 1-3 As shown, including:

[0058] The housing 1 comprises a first housing 101 and a second housing 102. The first housing 101 is detachably fastened to the second housing 102 to form an inner cavity. The first housing 101 or the first housing 101 is provided with a sound outlet 103, or the first housing 101 and the second housing 102 are both provided with a sound outlet 103.

[0059] The diaphragm mechanism 2 is fixed between the first shell 101 and the second shell 102, and divides the inner cavity of the shell into a first cavity 104 and a second cavity 105;

[0060] The first magnetic generating element 106 provides a first fixed magnetic field for the first cavity 104;

[0061] The second magnetic generating element 107 provides a second fixed magnetic field for the second cavity 105. The first fixed magnetic field in the first cavity 104 and the second fixed magnetic field in the second cavity 105 have opposite polarities at one end close to the diaphragm mechanism 2.

[0062] The diaphragm mechanism 2 has an extension portion 201 extending out of the housing 1 , and the extension portion 201 is sleeved with an electromagnetic coil 202 .

[0063] The specific working process of the receiver of this structure is:

[0064] Reference Figure 1 When positive electricity is passed into the electromagnetic coil 202 mounted on the extension part 201 of the diaphragm mechanism 2, the electromagnetic coil 202 will generate a variable magnetic field, which is distributed in the horizontal direction. Assuming that the magnetic pole at the end close to the shell 1 is the N pole, since the first cavity 104 and the second cavity 105 on both sides of the diaphragm mechanism 2 respectively have the first fixed magnetic field and the second fixed magnetic field, and the polarity of the first fixed magnetic field and the second fixed magnetic field close to the diaphragm mechanism 2 is opposite, assuming that the end of the first fixed magnetic field close to the diaphragm mechanism 2 is the S pole, and the end of the second fixed magnetic field close to the diaphragm mechanism 2 is the N pole, then according to the law that "like magnetic poles repel each other and unlike magnetic poles attract each other", it can be The variable magnetic field is attracted by the first fixed magnetic field in the first cavity 104, and is repelled by the second fixed magnetic field in the second cavity 105. Therefore, the diaphragm mechanism 2 vibrates in the first cavity 104 under the driving force of the first fixed magnetic field and the second fixed magnetic field; when reverse electricity is passed through the electromagnetic coil 202, the direction of the variable magnetic field changes by 180 degrees, that is, the magnetic pole close to one end of the shell 1 is the S pole. At this time, the variable magnetic field is repelled by the first fixed magnetic field in the first cavity 104, and is attracted by the second fixed magnetic field in the second cavity 105. Therefore, the diaphragm mechanism 2 vibrates in the second cavity 105 under the driving force of the first fixed magnetic field and the second fixed magnetic field. In this way, the diaphragm mechanism 2 vibrates up and down to produce sound.

[0065] In the receiver of this structure, the electromagnetic coil 202 is sleeved on the extension portion 201 of the diaphragm mechanism 2. Since the extension portion 201 is located outside the shell 1, the electromagnetic coil 202 in the receiver provided by the present invention does not occupy the space in the shell 1, which greatly reduces the thickness of the receiver. In addition, when installing the receiver, the traditional method is to first sleeve the coil on the armature, and then fix the balanced armature with the coil sleeved on it in the shell 1. At this time, the balanced armature has a large volume due to the coil sleeved on it, which is very inconvenient to assemble. The present invention first fixes the diaphragm mechanism 2 between the first shell 101 and the second shell 102, and then installs the electromagnetic coil 202 on its extension portion 201. Compared with the traditional method, this assembly is more convenient and greatly reduces the difficulty of assembling the diaphragm mechanism 2.

[0066] In addition, the diaphragm mechanism 2 is fixed as a whole between the first shell 101 and the second shell 102, and the inner cavity of the shell 1 is divided into a first cavity 104 and a second cavity 105. Compared with the traditional method of connecting the diaphragm and the armature through transmission equipment such as a transmission rod or a guide pin, this structure, on the one hand, combines the diaphragm and the armature into a whole, eliminates the transmission equipment, and greatly reduces the thickness of the receiver. On the other hand, when assembling the receiver, it is only necessary to fix the diaphragm mechanism 2 as a whole between the first shell 101 and the second shell 102, without manually fixing the diaphragm on the shell 1 and then connecting the diaphragm to the armature through the transmission equipment. The structure is very simple, which greatly simplifies the assembly process, reduces the difficulty of assembly, and improves the assembly efficiency. In addition, for later maintenance or performance testing, it is only necessary to disassemble the diaphragm mechanism 2, which is very convenient to operate.

[0067] In this embodiment, the diaphragm mechanism 2 includes a sound-generating membrane 203 and a vibration-generating device 204 for driving the sound-generating membrane 203 to vibrate, and the vibration-generating device 204 has an extension portion 201. In the receiver of this structure, the vibration-generating device 204 is divided into two parts, one part is fixed in the housing 1, fixedly connected to the sound-generating membrane 203, and used to drive the sound-generating membrane 203 to vibrate and produce sound, and the other part extends outside the housing 1 and is used to connect the electromagnetic coil 202. When alternating positive current and reverse current are passed through the electromagnetic coil 202, a changing magnetic field will be generated on the vibration-generating device 204, which will then interact with the fixed magnetic field in the housing 1, driving the sound-generating membrane 203 to vibrate up and down to produce sound.

[0068] In this embodiment, the vibration generating device 204 includes:

[0069] A fixing frame 2041 having a hollow through hole 2042 in the middle and an extension portion 201;

[0070] The elastic vibration plate 2043 is located inside the hollow through hole 2042, one end of which is fixed to the fixing frame 2041 and the other end is suspended in the air, and the extension portion 201 of the fixing frame 2041 is arranged at the end where the fixing frame 2041 and the elastic vibration plate 2043 are connected;

[0071] The fixed frame 2041 and the elastic vibration plate 2043 are both made of magnetic conductive materials, such as high-conductivity hard magnetic alloys, etc.;

[0072] The sounding membrane 203 is fixed to the fixing frame 2041 , covers the hollow through hole 2042 , and faces the elastic vibration plate 2043 . The sounding membrane 203 is glued to the fixing frame 2041 and the elastic vibration plate 2043 .

[0073] In the receiver of this structure, since the fixed frame 2041 and the elastic vibration plate 2043 are both magnetically conductive, when the electromagnetic coil 202 set on the extension 201 of the fixed frame 2041 is supplied with positive or reverse electricity, the magnetic field generated by the electromagnetic coil 202 will be transmitted to the fixed frame 2041 and the elastic vibration plate 2043, and then interact with the fixed magnetic field inside the shell. Since the fixed frame 2041 has a hollow through hole 2042 in the middle, one end of the elastic vibration plate 2043 is connected to the hollow through hole 2042, and the other end is suspended. Therefore, under the drive of the magnetic field force of the first fixed magnetic field and the second fixed magnetic field, the suspended end of the elastic vibration plate 2043 can reciprocate up and down in the hollow through hole 2042. Since the sounding membrane 203 is fixed on the fixed frame 2041 and covers the hollow through hole 2042, the elastic vibration plate 2043 drives the sounding membrane 203 to vibrate together, thereby driving the air in the cavity to produce sound. The diaphragm mechanism 2 of this structure is relatively simple in structure, and during the assembly process or later maintenance or performance testing, it is only necessary to fix the fixing frame 2041 in the inner cavity of the shell 1 or remove the fixing frame 2041 from the inner cavity of the shell 1 to achieve the installation or disassembly of the entire diaphragm mechanism 2. The operation is very convenient and the operating efficiency is improved.

[0074] As a preferred design scheme for the structure of the fixing frame 21, the fixing frame 2041 is in a "convex" shape.

[0075] Since the electromagnetic coil 202 needs to occupy a certain space, when the electromagnetic coil 202 is mounted on the extension portion 201 of the fixed frame 2041, the space occupied by the extension portion 201 will inevitably increase. The present invention reduces the width of the extension portion 201 of the fixed frame 2041, that is, a corresponding winding space is reserved for the electromagnetic coil 202, so that after the electromagnetic coil 202 is installed on the extension portion 201, the width and height occupied by the extension portion 201 as a whole are matched with the shell 1. On the one hand, it is easy to install, and on the other hand, the overall volume of the receiver is minimized to the greatest extent, thereby improving its portability.

[0076] In this embodiment, the fixing frame 2041 is fixed to the buckled seal of the first shell 101 and the second shell 102. For example, the fixing frame 2041 can be fixed between the first shell 101 and the second shell 102 by spot welding or gluing, or a clamping part can be provided on the first shell 101 and the second shell 102 so that the fixing frame 2041 is clamped and fixed with the clamping part. With such a configuration, when assembling the receiver, as long as the fixing frame 2041 is fixed between the first shell 101 and the second shell 102 when the first shell 101 and the second shell 102 are buckled and assembled, the installation of the diaphragm mechanism 2 can be completed, and the assembly process is very simple.

[0077] In this embodiment, an anti-magnetic cover 205 is provided outside the electromagnetic coil 202, and the anti-magnetic cover 205 is seamlessly fixedly connected to the outer side of the housing 1. The provision of the anti-magnetic cover 205 prevents the magnetic field generated by the electromagnetic coil 202 from leaking out, and on the other hand, concentrates the magnetic field generated by the electromagnetic coil 202 inside the anti-magnetic cover 205 to form an electromagnetic field loop; in addition, the force between the magnetic fields is made stronger, and the vibration amplitude of the diaphragm mechanism 2 is made larger, thereby improving the sound effect of the receiver.

[0078] In this embodiment, the first magnetic generating member 106 is a first permanent magnet, which is fixed in the first cavity 104, and the second magnetic generating member 107 is a second permanent magnet, which is fixed in the second cavity 105. The first permanent magnet is glued in the first cavity 104, and the second permanent magnet is glued in the second cavity 105.

[0079] In this embodiment, a tuning tube 108 is disposed in the housing 1 , and a sound guide tube 109 is disposed at the sound outlet 103 .

[0080] Example 2

[0081] This embodiment provides a method for assembling the receiver described in Embodiment 1, comprising the following steps:

[0082] S1, fixing the first magnetic generating element 106 in the first housing 101;

[0083] S2, fixing the second magnetic generating element 107 in the second housing 102;

[0084] S3, assembling and fixing the first shell 101 and the second shell 102, and fixing the diaphragm mechanism 2 between the first shell 101 and the second shell 102;

[0085] S4, sleeve the electromagnetic coil 202 on the extension portion 201 of the diaphragm mechanism 2.

[0086] First, the first magnetic generating component 106 is fixed in the first shell 101 to form a first module, and the second magnetic generating component 107 is fixed in the second shell 102 to form a second module. Then, the first module and the second module are assembled together, and the diaphragm mechanism 2 as the third module is fixed between the first shell 101 and the second shell 102. Finally, the electromagnetic coil 202 as the fourth module is sleeved on the extension part 201 of the diaphragm mechanism 2, and the assembly process of the entire receiver is completed. Since the first module, the second module and the third module are assembled separately and can be carried out at the same time, a lot of assembly time is saved and the assembly efficiency is improved. In addition, the electromagnetic coil 202 is sleeved on the diaphragm mechanism 2 at the end, which is more convenient to assemble than the traditional method of fixing the balancing armature sleeved with the coil on the shell 1, and reduces the difficulty of assembling the diaphragm mechanism 2. In addition, the diaphragm mechanism 2 is fixed as a whole between the first shell 101 and the second shell 102, and the inner cavity of the shell 1 is divided into a first cavity 104 and a second cavity 105. Compared with the traditional method of first sticking the diaphragm to the inner wall of the shell 1 and then connecting the diaphragm and the armature through transmission equipment such as a transmission rod or a guide pin, the assembly process of the present invention is simpler, the assembly difficulty is greatly reduced, the assembly efficiency is greatly improved, and during later maintenance or performance testing, it is only necessary to disassemble the diaphragm mechanism 2, which is very convenient to operate.

[0087] The first magnetic generating element 106 is a first permanent magnet, and the second magnetic generating element 107 is a second permanent magnet.

[0088] Step S1 specifically includes: fixing the first permanent magnet in the first cavity 104 by gluing;

[0089] Step S2 specifically includes: fixing the second permanent magnet in the second cavity 105 by gluing.

[0090] In this embodiment, the diaphragm mechanism 2 includes a fixing frame 2041 , an elastic vibration plate 2043 and a sound producing membrane 203 .

[0091] Before step S3, step S2.1 of assembling the diaphragm mechanism 2 is also included: one end of the elastic vibration plate 2043 is fixed to the hollow through hole 2042 of the fixing frame 2041, and the other end is suspended in the hollow through hole 2042, and the sounding membrane 203 is glued to the fixing frame 2041 and the elastic vibration plate 2043.

[0092] It should be noted that steps S1, S2, and S2.1 are performed simultaneously and do not need to be performed sequentially. This saves a lot of assembly time and greatly improves assembly efficiency.

[0093] In step S3, the step of fixing the diaphragm mechanism 2 between the first shell 101 and the second shell 102 is specifically as follows: fix the outer edge of the fixed frame 2041 in the diaphragm mechanism 2 to the snap-fitting seal of the first shell 101 and the second shell 102, generally by spot welding or gluing, or by providing a snap-fitting portion on the first shell 101 and the second shell 102, and installing the fixed frame 2041 in conjunction with the snap-fitting portion.

[0094] As a preferred design solution, after the step S4 of sleeve-mounting the electromagnetic coil 202 on the extension portion 201 of the diaphragm mechanism 2, the following step S5 is also included:

[0095] A magnetic shield 205 is disposed outside the electromagnetic coil 202 .

[0096] 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) comprising a first housing (101) and a second housing (102), wherein the first housing (101) is detachably fastened to the second housing (102) to form an inner cavity; A diaphragm mechanism (2) is fixed between the first shell (101) and the second shell (102), and divides the inner cavity of the shell (1) into a first cavity (104) and a second cavity (105); A first magnetic generating element (106) for providing a first fixed magnetic field for the first cavity (104); a second magnetic generating element (107) for providing a second fixed magnetic field for the second cavity (105), wherein the first fixed magnetic field in the first cavity (104) and the second fixed magnetic field in the second cavity (105) have opposite polarities at one end close to the diaphragm mechanism (2); The diaphragm mechanism (2) comprises a sound-generating membrane (203) and a vibration-generating device (204) for driving the sound-generating membrane (203) to vibrate, wherein the vibration-generating device (204) comprises an extension portion (201), and the extension portion (201) is sleeved with an electromagnetic coil (202); The vibration generating device (204) comprises: A fixed frame (2041), having a hollow through hole (2042) in the middle, and having the extension portion (201), wherein the extension portion (201) is fixedly connected to the outside of the fixed frame (2041); An elastic vibration plate (2043) is located inside the hollow through hole (2042), one end of which is fixed to the fixing frame (2041) and the other end of which is suspended in the air; The fixing frame (2041) and the elastic vibration plate (2043) are both made of magnetic conductive material; The sound-generating membrane (203) is fixed to the fixing frame (2041), covers the hollow through hole (2042), and is opposite to and connected to the elastic vibration plate (2043).

2. The receiver according to claim 1, characterized in that The fixing frame (2041) is in the shape of a "convex" character.

3. The receiver according to claim 1, characterized in that The fixing frame (2041) is fixed to the buckled sealing portion of the first shell (101) and the second shell (102).

4. The receiver according to claim 1, characterized in that An anti-magnetic cover (205) is arranged outside the electromagnetic coil (202).

5. The receiver according to claim 1, characterized in that: The first magnetic generating element (106) is a first permanent magnet, which is fixed in the first cavity (104); the second magnetic generating element (107) is a second permanent magnet, which is fixed in the second cavity (105).

6. A method for assembling a receiver, used for the receiver according to any one of claims 1 to 5, characterized in that: The following steps are involved: Fixing the first magnetic generating element (106) in the first housing (101); Fixing the second magnetic generating element (107) in the second housing (102); Assembling and fixing the first shell (101) and the second shell (102), and fixing the diaphragm mechanism (2) between the first shell (101) and the second shell (102); The electromagnetic coil (202) is sleeved on the extension portion (201) of the diaphragm mechanism (2).

7. The receiver assembly method according to claim 6, characterized in that: The specific step of fixing the diaphragm mechanism (2) between the first shell (101) and the second shell (102) is: fixing the outer edge of the fixing frame (2041) in the diaphragm mechanism (2) to the buckled sealing portion of the first shell (101) and the second shell (102).

8. The receiver assembly method according to claim 6 or 7, characterized in that: After the step of sleeve-arranging the electromagnetic coil (202) on the extension portion (201) of the diaphragm mechanism (2), the following steps are also included: An anti-magnetic cover (205) is disposed outside the electromagnetic coil (202).

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