CN107613442B - Telephone receiver and assembling method thereof - Google Patents
Telephone receiver and assembling method thereof Download PDFInfo
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- CN107613442B CN107613442B CN201710631724.XA CN201710631724A CN107613442B CN 107613442 B CN107613442 B CN 107613442B CN 201710631724 A CN201710631724 A CN 201710631724A CN 107613442 B CN107613442 B CN 107613442B
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 42
- 239000012528 membrane Substances 0.000 claims abstract description 34
- 238000004804 winding Methods 0.000 claims description 7
- 230000004044 response Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 4
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 50
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
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Abstract
The invention discloses a telephone receiver and an assembly method thereof. The shell comprises a first shell and a second shell, and an inner cavity is formed in a buckled manner; the sound membrane mechanism divides the inner cavity into a first cavity and a second cavity, and the sound membrane mechanism is arranged in the first cavity; the vibration mechanism comprises an electromagnet unit and a vibration unit; the magnet unit comprises an armature and a coil which is wound on at least part of the armature; the vibration unit is a permanent magnet arranged in the magnetic circuit of the electromagnet unit, and the permanent magnet is connected with the sound film mechanism. The receiver with the structure can meet the requirement of the receiver frequency response curve only by using one permanent magnet, and the production cost is saved. The assembly method is carried out according to the sequence of the first shell, the sound membrane mechanism and the second shell, and the modularized vertical installation can be realized, so that the installation cost of the telephone receiver is saved.
Description
Technical Field
The invention relates to the field of electromagnetic receivers, in particular to a receiver and an assembly method thereof.
Background
Electromagnetic receivers are widely used in portable electronic devices such as mobile phones, notebook computers, hearing aids, and the like. With the rapid development of these portable electronic devices, the requirements for the functionality thereof are increasing, and the miniature receiver components applied thereto are correspondingly rapidly developed.
The electromagnetic receiver disclosed in the patent number CN201369820Y takes the permanent magnetic fields of two magnetic steels which are vertically and oppositely arranged as a driving magnetic field, the thickness of the receiver with the structure comprises the thickness of the two magnetic steels, and the external dimension is larger; in addition, due to the fact that two magnetic steels are arranged in cost, compared with a receiver with a single magnetic steel structure, one magnetic steel is added, and the assembly method also adds the steps of fixing and magnetizing one magnetic steel, so that production cost is relatively high.
Therefore, under the condition that the frequency response curve can reach the standard, the structure of single magnetic steel is adopted, so that the production cost can be saved, and the receiver is miniaturized.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is that the cost of the receiver adopting the two-block magnetic steel structure in the prior art is high.
To this end, the invention provides a receiver comprising
The shell comprises a first shell and a second shell which can be buckled, wherein a first cavity is formed in the first shell, and a second cavity is formed in the second shell;
a diaphragm mechanism separating the interior cavity into the first chamber and the second chamber;
the vibration mechanism comprises an electromagnet unit and a vibration unit;
the electromagnet unit comprises an armature and a coil which is wound on at least part of the armature; the vibration unit is a permanent magnet arranged in the magnetic circuit of the electromagnet unit, and the permanent magnet is connected with the sound film mechanism.
Further, the sound membrane mechanism comprises a fixed frame, a vibrating plate and a sound membrane, wherein the fixed frame is connected with the shell, one end of the vibrating plate is fixedly connected with the fixed frame, and the sound membrane is arranged in the first cavity and covers the surface of the fixed frame.
Further, the permanent magnet is fixed to the vibration plate in the second chamber.
Further, a clamping groove matched with the permanent magnet is formed in the vibrating plate, the end portion of the permanent magnet is clamped in the clamping groove, and the clamping groove is far away from the fixed end of the vibrating plate.
Further, the armature is a U-shaped armature, the U-shaped armature comprises two symmetrically arranged detachable first arm elbow units and second arm elbow units, and the first arm elbow units and the second arm elbow units are respectively arranged in the first cavity and the second cavity.
Further, the connecting portion of the first elbow unit and the second elbow unit is fixedly connected with the vibration plate, and a through hole allowing the connecting portion to pass through is formed in the vibration plate.
Further, a set of coils is wound around each of the first elbow unit and the second elbow unit, and the ends of the first elbow unit and the second elbow unit generate the same magnetic poles when the same alternating current is passed through the two sets of coils.
Further, the permanent magnet is disposed between the ends of the first elbow unit and the second elbow unit, and the poles of the permanent magnet are respectively opposite to the ends of the first elbow unit and the second elbow unit.
Further, the connecting parts of the first elbow unit and the second elbow unit are concave-convex units matched with each other.
Further, an end portion of the first elbow unit is formed with a detachable protrusion opposite to the permanent magnet.
The invention also provides an assembling method of the telephone receiver, which comprises the following steps:
s1: fixedly mounting a first elbow unit in a first cavity to form a first shell module;
S2: fixedly mounting a second elbow unit in the second cavity to form a second shell module;
s3: assembling a sound film mechanism, and fixedly connecting a permanent magnet with the sound film mechanism to form a vibration sound film module;
s4: and sequentially assembling and fixing the first shell module, the vibrating diaphragm module and the second shell module.
Further, the step S1 further includes: winding the coil (32) on the first elbow unit (311), and fixedly mounting the coil (32) and the first elbow unit (311) in the first cavity;
the step S2 further includes: and winding the coil on the second elbow unit, and fixedly mounting the coil and the second elbow unit in the second cavity.
Further, in the above assembling method, the step S3 further includes: and inserting one end part of the permanent magnet into a clamping groove preset on the vibration plate, and enabling the inserted end part of the permanent magnet to be flush with the surface of the vibration plate.
Further, the step S4 further includes: and enabling the connecting part of the first elbow unit and the second elbow unit to pass through the through hole on the vibrating plate, so that the concave-convex units of the connecting part are mutually clamped and fixed.
The technical scheme provided by the invention has the following advantages:
1. The telephone receiver provided by the invention comprises a shell, a sound membrane mechanism and a vibration mechanism. The shell comprises a first shell and a second shell which can be buckled, a first cavity is formed in the first shell, and a second cavity is formed in the second shell; the sound membrane mechanism divides the inner cavity into a first cavity and a second cavity; the vibration mechanism comprises an electromagnet unit and a vibration unit, wherein the electromagnet unit comprises an armature and a coil which is wound on at least part of the armature; the vibration unit is a permanent magnet arranged in the magnetic circuit of the electromagnet unit; the permanent magnet is connected with the sound film mechanism.
The receiver with the structure is characterized in that the permanent magnet is connected with the sound film mechanism as a vibration unit and is positioned in a magnetic circuit of the electromagnet unit, and the sound film mechanism is driven to vibrate under the action of alternating magnetic field force generated by the coil, so that sound is produced. The permanent magnet is adopted to replace the armature as the vibration unit, the permanent magnet is arranged between the two ends of the armature, and the magnetic field force of the two ends acting on the permanent magnet is equal by matching the magnetic field of the permanent magnet and the distance between the permanent magnet and the armature, namely the driving force of the vibration unit, which is applied to the two ends of the armature, is equal. At this time, the magnitudes of the acting forces of the fixed magnetic fields of the permanent magnets on the two ends of the armature are the same, so that the acting forces on the permanent magnets can be mutually offset when the two ends of the armature are not provided with polarities, and the permanent magnets are still between the two ends of the armature when the alternating current is not connected, so that vibration is not generated, and the frequency response curve of the receiver is ensured to reach the standard. The structure of the vibration unit adopts the armature, because the magnetic field of the permanent magnet is a fixed magnetic field, magnetic field force is generated on the armature at any time, two permanent magnets are required to be symmetrically arranged at the vibration part of the armature, and the magnetic field sizes of the two permanent magnets and the distances between the two permanent magnets and the vibration part of the armature are required to be matched, so that the acting force of the permanent magnets on the vibration part of the armature when the vibration part of the armature does not have polarity is offset, and the frequency response curve of the receiver can be ensured to reach the standard. Therefore, compared with the armature iron serving as the vibration unit and the permanent magnet serving as the vibration unit, the permanent magnet can be arranged at one less, and the production cost is further saved. In addition, as only one permanent magnet is arranged, the thickness of the receiver is reduced, and a step of arranging the permanent magnet on the shell is also saved.
2. The invention provides a telephone receiver, wherein a sound membrane mechanism comprises a fixed frame, a vibrating plate and a sound membrane. The fixed frame is connected with the shell, one end of the vibrating plate is fixedly connected with the fixed frame, and the sound membrane is arranged in the first cavity and covers the surface of the fixed frame; a permanent magnet is fixed to the diaphragm within the second chamber.
According to the telephone receiver with the structure, the permanent magnet vibrates under the action of the magnetic force of the electromagnet unit to drive the vibrating plate to vibrate together, and one end of the vibrating plate is fixedly connected with the fixed frame to form a cantilever structure, so that the vibration conduction effect is better; the sound membrane covers the surface at fixed frame, fixed frame and casing fixed connection to make the vibrating plate can give the sound membrane with vibration conduction, drive the sound membrane vibration, and then drum air sound production.
3. According to the telephone receiver provided by the invention, the clamping groove matched with the permanent magnet is formed in the vibrating plate, the end part of the permanent magnet is clamped in the clamping groove, and the clamping groove is far away from the fixed end of the vibrating plate. The receiver with the structure is characterized in that the clamping groove matched with the permanent magnet is formed in the vibrating plate, so that the end part of the permanent magnet is clamped in the clamping groove, the connection thickness between the permanent magnet and the vibrating plate can be accurately controlled, the requirement that the distance between the permanent magnet and the two end parts of the armature is equal can be further accurately met, and the frequency response curve of the receiver can reach the standard; the draw-in groove is kept away from the stiff end setting of vibrating plate, and the permanent magnet then sets up in keeping away from the stiff end of vibrating plate correspondingly, also the distal end of cantilever beam structure, can conduct vibration better for the vibrating plate has bigger amplitude, improves the sensitivity of receiver.
4. The telephone receiver provided by the invention has the advantages that the armature is a U-shaped armature, the U-shaped armature comprises two detachable first arm elbow units and second arm elbow units which are symmetrically arranged, and the first arm elbow units and the second arm elbow units are respectively arranged in the first cavity and the second cavity; the connecting part of the first elbow unit and the second elbow unit is positioned on the vibrating plate, and a through hole allowing the connecting part to pass through is arranged on the vibrating plate; the first elbow unit and the second elbow unit are wound with coils, and when the same alternating current passes through the two groups of coils, the ends of the first elbow unit and the second elbow unit generate the same magnetic poles. .
According to the telephone receiver with the structure, the U-shaped armature can enable the magnetic field intensity generated by the two end parts to be the same only by winding the coil on the U-shaped armature; the U-shaped armatures are symmetrically arranged and are respectively arranged in the first cavity and the second cavity, so that the U-shaped armatures can be conveniently and vertically installed in a modularized manner, and the production cost is saved; the connecting part is positioned on the vibrating plate, and the through hole allowing the connecting part to pass through is arranged on the vibrating plate, so that the alternating magnetic field can be ensured to be transmitted only in the U-shaped armature, and the loss of the alternating magnetic field when being transmitted in different magnetic conduction media is avoided; the through holes are formed in the vibrating plate, so that the strength of the vibrating plate is reduced, vibration is easier to generate under the same external force, and the sensitivity of the receiver is improved; the coil is wound on the second elbow unit in the second cavity, so that the first elbow unit in the first cavity can be tightly attached to the inner wall surface of the first shell, the required thickness of the receiver is reduced, and the thinning of the receiver is facilitated.
5. The permanent magnet is arranged between the end parts of the first elbow unit and the second elbow unit, and the magnetic poles of the permanent magnet are respectively opposite to the end parts of the first elbow unit and the second elbow unit; the connecting parts of the first elbow unit and the second elbow unit are concave-convex units matched with each other; the end of the first elbow unit is formed with a protrusion opposite to the permanent magnet.
According to the telephone receiver with the structure, the magnetic poles of the permanent magnet are respectively opposite to the end parts of the first arm elbow unit and the second arm elbow unit, so that the magnetic field force born by the permanent magnet in an alternating magnetic field is strongest, the generated vibration amplitude is largest, and the sensitivity of the telephone receiver is highest; the connecting parts of the first elbow unit and the second elbow unit are concave-convex units matched with each other, so that the connection of the first elbow unit and the second elbow unit is tighter, and the loss of an alternating magnetic field at the connecting parts of the first elbow unit and the second elbow unit can be reduced; the end part of the first elbow unit is provided with a bulge opposite to the permanent magnet, so that the requirement that the distance between the permanent magnet and the two end parts of the armature is equal can be ensured under the condition that the size of the first chamber is fixed.
6. The invention provides an assembling method of a receiver, which comprises the following steps of fixedly installing a first elbow unit in a first cavity to form a first shell module; fixedly mounting a second elbow unit in the second cavity to form a second shell module; assembling a sound film mechanism, and fixedly connecting a permanent magnet with the sound film mechanism to form a vibration sound film module; and sequentially assembling and fixing the first shell module, the vibrating diaphragm module and the second shell module.
In the method for assembling the receiver, a first shell module is formed by a first elbow unit and a first shell; the second elbow unit, the coil and the second housing form a second housing module; the sound film mechanism and the permanent magnet arranged on the sound film mechanism are used as vibration sound film modules; and finally, the assembly process of the telephone receiver can be completed by assembling the three modules independently, so that the telephone receiver can be assembled in an automatic mode, the assembly efficiency of the telephone receiver is greatly improved, and the production cost of the telephone receiver is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic longitudinal section of a receiver;
FIG. 2 is a top view of the diaphragm mechanism (diaphragm not shown);
FIG. 3 is an exploded schematic view of an armature;
reference numerals illustrate:
1-a housing; 11-a first housing; 111-sound outlet holes; 12-a second housing; 121-tuning holes; 13-a first chamber; 14-a second chamber;
2-a sound membrane mechanism; 21-a fixed frame; 22-a vibrating plate; 221-a clamping groove; 222-a through hole; 223-penetrating holes; 23-sound membrane;
3-an electromagnet unit; 31-armature; 311-first elbow unit; 3111-protrusions; 312-a second elbow unit; 313-end; 314-a connection; a 32-coil;
4-permanent magnet.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
The embodiment provides a receiver, as shown in fig. 1, which comprises a shell 1, a sound membrane mechanism 2 and a vibration mechanism.
As shown in fig. 1, the housing 1 has a first housing 11 formed with a first chamber and a second housing 12 formed with a second chamber, and the first housing 11 and the second housing 12 can be engaged to constitute an inner cavity. The sound membrane mechanism 2 divides the inner cavity into a first chamber 13 and a second chamber 14; the vibration mechanism comprises an electromagnet unit 3 and a vibration unit; the electromagnet unit 3 includes a U-shaped armature 31 and a coil 32 wound around the armature 31; the vibration unit is a permanent magnet 4 arranged in the magnetic circuit of the electromagnet unit 3, the permanent magnet 4 is arranged between the two end parts 313 of the armature 31, and the distance between the permanent magnet 4 and the two end parts 313 is the same, so that the frequency response curve of the receiver can be ensured to reach the standard; the permanent magnet 4 is connected with the sound membrane mechanism 2.
As shown in fig. 1 and 2, the diaphragm mechanism 2 is disposed in the inner cavity between the first housing 11 and the second housing 12 or the diaphragm mechanism 2 is stuck in the opening of the first housing 11. The sound membrane mechanism 2 comprises a fixed frame 21, a vibrating plate 22 and a sound membrane 23, wherein the fixed frame 21 is connected with the shell 1, the vibrating plate 22 is arranged in the fixed frame 21, one end of the vibrating plate 22 is fixedly connected with the fixed frame 21, the other end of the vibrating plate can vibrate freely, the sound membrane 23 is arranged in the first cavity 13 and covers the surface of the fixed frame 21, the sound membrane 23 covers the fixed frame 21, the edge of the sound membrane 23 is fixedly connected with the fixed frame 21, and the middle part of the sound membrane is fixedly connected with the vibrating plate 22; the first housing 11 is further provided with a sound outlet 111 for producing sound, and the second housing 12 is also provided with a tuning hole 121 for tuning. The permanent magnet 4 is fixed to the vibration plate 22 in the second chamber 14.
As shown in fig. 1 and fig. 3, the armature 31 is a U-shaped armature 31, the U-shaped armature 31 includes two symmetrically arranged detachable L-shaped first arm elbow units 311 and second arm elbow units 312, wherein connecting portions 314 are correspondingly arranged on the first arm elbow units 311 and the second arm elbow units 312, and the two arm elbow units can be spliced to form a U-shaped iron through the connecting portions 314, so that the modular vertical installation can be facilitated; the first and second elbow units 312 are respectively disposed in the first and second chambers 14, the connection portions 314 of the first elbow unit 311 and the second elbow unit 312 can be connected and fixed through the vibration plate 22, and corresponding through holes 222 allowing the connection portions 314 to pass through are disposed on the vibration plate 22. The connecting part 314 is concave-convex units matched with each other, so that the two arm elbow units are connected more tightly, and electromagnetic loss is reduced; a set of coils 32 are respectively wound on the first arm unit 311 and the second arm elbow unit 312, and when the same alternating current passes through the two sets of coils 32, the first arm elbow unit 311 and the end 313 of the second arm elbow unit 312 generate the same magnetic poles so as to avoid the mutual offset of the acting forces of the two ends 313 of the armature 31 on the two magnetic poles of the permanent magnet 4; the end 313 of the first elbow unit 311 is formed with a detachable protrusion 3111 opposite to the permanent magnet 4, and in case that the first chamber 13 is of a certain size, it is ensured that the distance between the permanent magnet 4 and the two ends 313 of the armature 31 is equal, so that the vibration plate achieves an optimal vibration state.
As shown in fig. 1 and 2, the vibration plate 22 is provided with a clamping groove 221 adapted to the permanent magnet 4, the end 313 of the permanent magnet 4 is clamped in the clamping groove 221, the insertion end of the permanent magnet 4 does not exceed the lower surface of the vibration plate 22, and the distance between the first elbow unit 311 and the second elbow unit 312 and the upper and lower surfaces of the vibration plate 22 after being fixedly installed is fixed, and the vertical length of the permanent magnet 4 is also a fixed value, so that the problem that the thickness of the joint cannot be accurately controlled when the permanent magnet 4 is directly arranged on the vibration plate 22 can be avoided through the arrangement, and the distance between the two ends of the permanent magnet 4 and the first elbow unit 311 and the second elbow unit 312 can be accurately controlled; the clamping groove 221 is provided away from the fixed end of the vibration plate 22, and can improve the vibration amplitude of the vibration plate 22. Meanwhile, the vibration plate 22 is also provided with a penetrating hole 223, and the penetrating hole 223 can reduce the electromagnetic loss of a magnetic field so as to improve the vibration amplitude of the vibration plate.
As shown in fig. 1, the permanent magnet 4 is disposed between the ends 313 of the first elbow unit 311 and the second elbow unit 312, and the poles of the permanent magnet 4 are respectively opposite to the ends 313 of the first elbow unit 311 and the second elbow unit 312, so that the permanent magnet 4 receives the strongest magnetic force, and the amplitude of the vibration plate 22 is increased.
The receiver sounding process in this embodiment: in the initial state, the armature 31 is made of a magnetic conductive material, the permanent magnet 4 generates a fixed magnetic field, and magnetic field forces are generated on the two end parts 313 of the U-shaped armature 31, but the magnetic field forces are opposite in the same direction because the distance between the permanent magnet 4 and the two end parts 313 is the same, and the reaction forces of the two end parts 313 to the permanent magnet 4 are opposite in the same direction and offset each other, so that the permanent magnet 4 is in a balanced state; for example, when the winding directions of the two coils on the armature are opposite, if the two coils 32 are connected with alternating current in the same direction, alternating magnetic fields are respectively generated at the two ends of the first arm elbow unit 311 and the second arm elbow unit 312, the magnetism of the corresponding ends of the first arm elbow unit 311 and the second arm elbow unit 312 and the permanent magnet 4 are kept the same, the magnetic field strength of the two ends 313 of the U-shaped armature 31 is the largest, and during the interaction with the fixed magnetic field of the permanent magnet 4, if the magnetic pole of the permanent magnet 4 near one end of the first arm elbow unit 311 is the same as the magnetic pole of the end 313 of the first arm elbow unit 311, the first arm elbow unit 311 gives the permanent magnet 4 a thrust force towards the permanent magnet 4, and the second arm elbow unit 312 gives the permanent magnet 4 a suction force towards the second arm elbow unit 312; under the combined action of the thrust and the suction force, the permanent magnet 4 vibrates towards the direction of the second elbow unit 312, and the permanent magnet 4 is arranged on the vibrating plate 22, so that the vibrating plate 22 is driven to vibrate, and the sound membrane 23 covers the surface of the fixed frame 21, so that the vibrating plate 22 drives the sound membrane to vibrate in the vibration process, and then the surrounding air is driven to vibrate to produce sound; then, the alternating current direction of the alternating power source to which the coils 32 are turned on is changed, and conversely, when alternating current in opposite directions is turned on to the two coils 32, the first elbow unit 311 gives the permanent magnet 4 a suction force toward the first elbow unit 311, and the second elbow unit 312 simultaneously gives the permanent magnet 4 a pushing force toward the permanent magnet 4, so that the permanent magnet 4 vibrates toward the first elbow unit 311, and the vibration is transmitted to the sound membrane 23 through the vibration plate 22, and the sound membrane 23 vibrates by driving the surrounding air thereof to sound.
As an alternative embodiment, the end 313 of the first elbow unit 311 may not be provided with a detachable protrusion 3111 opposite the permanent magnet 4, as long as it is ensured that the distance of the permanent magnet 4 from the two ends 313 of the armature 31 is equal.
As an alternative embodiment, the permanent magnet 4 may be disposed at a position other than the ends 313 of the first elbow unit 311 and the second elbow unit 312, for example, at a position between the first elbow unit 311 and the second elbow unit 312 near the connection portion 314, so long as the force of the alternating magnetic field generated by the coil 32 on the permanent magnet 4 is sufficiently large to generate vibration after the ac power is turned on; of course, the magnetic poles of the permanent magnet 4 may not be opposed to the end portions 313 of the first elbow unit 311 and the second elbow unit 312, and the alternating magnetic field generated by the coil 32 after the ac power is turned on may interact with the fixed magnetic field of the permanent magnet 4 to cause the vibration of the permanent magnet 4.
Alternatively, the first elbow unit 311 and the second elbow unit 312 may be directly and fixedly connected to the vibration plate 22, and at this time, the connection portion 314 of the first elbow unit 311 and the second elbow unit 312 may be mutually matched planes, the vibration plate 22 is made of a magnetically conductive material, and the vibration plate 22 may not need to be provided with the through hole 222.
As an alternative embodiment, the armature 31 may be an M-shaped armature 31 or two parallel strip-shaped armatures 31, which only needs to satisfy the interaction force between the alternating magnetic field generated by the coil 32 wound on the armature 31 and the fixed magnetic field of the permanent magnet 4 to make the permanent magnet 4 vibrate; the armature 31 may be an integral structure, or may be assembled from several parts, as long as the armature 31 is magnetically conductive.
As an alternative embodiment, the clamping groove 221 matched with the permanent magnet 4 is not required to be arranged on the vibration plate 22, the permanent magnet 4 is directly arranged on the vibration plate 22, and the area of the vibration plate 22 where the permanent magnet 4 is arranged can conduct magnetism; of course, the clamping groove 221 may be disposed near the fixed end of the vibration plate 22, as long as the alternating magnetic force generated by the coil 32 is large enough to cause the permanent magnet 4 to vibrate.
As an alternative embodiment, the permanent magnet 4 may also be connected to the vibration plate 22 by a connecting rod, as long as the permanent magnet 4 is connected to the diaphragm mechanism 2.
The present embodiment provides a method for assembling a part of a receiver in embodiment 1, including the steps of:
S1: winding the coil 32 on the first elbow unit 311, and fixedly installing the coil 32 and the first elbow unit 311 in the first chamber 13 to form a first housing module;
S2: winding the coil 32 around the second elbow unit 312, and fixedly installing the coil 32 and the second elbow unit 312 in the second chamber 14 to form a second housing module;
S3: assembling the diaphragm mechanism 2, inserting one end of the permanent magnet 4 into a preset clamping groove 221 on the vibration plate 22, and enabling the inserted end of the permanent magnet 4 to be flush with the surface of the vibration plate 22 to form a vibration diaphragm module;
S4: according to the first housing module, the vibrating diaphragm module and the second housing module, when the vibrating diaphragm module is installed, the connecting portion 314 of the first arm elbow unit 311 and the second arm elbow unit 312 passes through the through hole 222 on the vibrating plate 22, so that the concave-convex units of the connecting portion 314 are mutually clamped and fixed, and finally the first housing 11 of the first housing module and the second housing 12 of the second housing module are mutually buckled, thereby completing the installation of the receiver.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (8)
1.A receiver, comprising:
The shell (1) comprises a first shell (11) and a second shell (12) which can be buckled, wherein the first shell (11) and the second shell (12) are buckled to form an inner cavity, a first cavity is formed in the first shell (11), and a second cavity is formed in the second shell (12):
A sound membrane mechanism (2), the sound membrane mechanism (2) dividing the inner cavity into the first chamber (13) and the second chamber (14);
the vibration mechanism comprises an electromagnet unit (3) and a vibration unit:
the method is characterized in that:
The electromagnet unit (3) comprises an armature (31) and a coil (32) wound at least on part of the armature (31): the vibration unit is a permanent magnet (4) arranged in the magnetic circuit of the electromagnet unit (3), and the permanent magnet (4) is connected with the sound film mechanism (2);
The sound membrane mechanism (2) comprises a fixed frame (21), a vibrating plate (22) and a sound membrane (23), wherein the fixed frame (21) is connected with the shell, one end of the vibrating plate (22) is fixedly connected with the fixed frame (21), and the sound membrane (23) is arranged in the first cavity (13) and covers the surface of the fixed frame (21);
a through hole (223) and a clamping groove (221) matched with the permanent magnet (4) are formed in the vibration plate (22);
The permanent magnet (4) is fixed on the vibrating plate (22) in the second chamber (14), the end part of the permanent magnet (4) is clamped in the clamping groove (221), and the clamping groove (221) is far away from the fixed end of the vibrating plate (22);
The U-shaped armature (31) comprises two symmetrically arranged detachable first arm elbow units (311) and second arm elbow units (312), and the first arm elbow units (311) and the second arm elbow units (312) are respectively arranged in the first chamber (13) and the second chamber (14);
The connecting part (314) of the first elbow unit (311) and the second elbow unit (312) is fixedly connected with the vibrating plate (22), and a through hole (222) allowing the connecting part (314) to pass through is arranged on the vibrating plate (22);
A group of coils (32) are respectively wound on the first elbow unit (311) and the second elbow unit (312), and when the same alternating current passes through the coils (32) in the two groups, the first elbow unit (311) and the end (313) of the second elbow unit (312) generate the same magnetic poles.
2. The receiver according to claim 1, wherein: the permanent magnet (4) is arranged between the first elbow unit (311) and the end (313) of the second elbow unit (312), and the magnetic poles of the permanent magnet (4) are respectively opposite to the end (313) of the first elbow unit (311) and the second elbow unit (312).
3. The receiver according to claim 1, wherein: the connection part (314) of the first elbow unit (311) and the second elbow unit (312) is a concave-convex unit which are matched with each other.
4. A receiver as claimed in any one of claims 1-3, characterized in that: an end (313) of the first elbow unit (311) is formed with a detachable protrusion (3111) opposite to the permanent magnet (4).
5. A method of assembling a receiver as claimed in any one of claims 1 to 4, comprising the steps of:
S1: fixedly mounting a first elbow unit (311) in a first cavity to form a first housing module:
s2: fixedly mounting a second elbow unit (312) in the second cavity to form a second housing module:
S3: assembling a sound film mechanism (2), and fixedly connecting a permanent magnet (4) with the sound film mechanism (2) to form a vibration sound film module:
s4: and sequentially assembling and fixing the first shell module, the vibration sound film module and the second shell module.
6. The method of assembly of claim 5, wherein:
The step Sl further includes: winding the coil (32) on the first elbow unit (311), and fixedly mounting the coil (32) and the first elbow unit (311) in the first cavity:
The step S2 further includes: the coil (32) is wound on the second elbow unit (312), and the coil (32) and the second elbow unit (312) are fixedly arranged in the second cavity.
7. The method of assembly of claim 5, wherein:
the step S3 further includes: one end of the permanent magnet (4) is inserted into a pre-set clamping groove (221) on the vibration plate (22), and the inserted end of the permanent magnet (4) is flush with the surface of the vibration plate (22).
8. The method of assembly of any one of claims 5-7, wherein:
the step S4 further includes: and enabling the connecting part (314) of the first elbow unit (311) and the second elbow unit (312) to pass through the through hole (222) on the vibrating plate (22) so that the concave-convex units of the connecting part (314) are mutually clamped and fixed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710631724.XA CN107613442B (en) | 2017-07-28 | 2017-07-28 | Telephone receiver and assembling method thereof |
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| CN201710631724.XA CN107613442B (en) | 2017-07-28 | 2017-07-28 | Telephone receiver and assembling method thereof |
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| CN107613442B true CN107613442B (en) | 2024-05-28 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111479202A (en) * | 2019-01-23 | 2020-07-31 | 捷音特科技股份有限公司 | Moving-magnetic loudspeaker |
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| CN107613442A (en) | 2018-01-19 |
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