CN108924707B - Telephone receiver and manufacturing method thereof - Google Patents
Telephone receiver and manufacturing method thereof Download PDFInfo
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- CN108924707B CN108924707B CN201810972827.7A CN201810972827A CN108924707B CN 108924707 B CN108924707 B CN 108924707B CN 201810972827 A CN201810972827 A CN 201810972827A CN 108924707 B CN108924707 B CN 108924707B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000003292 glue Substances 0.000 claims description 68
- 239000012528 membrane Substances 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims description 8
- 239000004831 Hot glue Substances 0.000 claims description 5
- 229920002799 BoPET Polymers 0.000 claims description 3
- 239000005041 Mylar™ Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 239000000696 magnetic material Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
- H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/045—Mounting
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/10—Telephone receivers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention provides a telephone receiver and a manufacturing method thereof, wherein the telephone receiver comprises a shell, a diaphragm assembly, a first magnetic conduction block, a second magnetic conduction block and a magnet, wherein the shell is formed by buckling an upper shell and a lower shell, the diaphragm assembly is transversely arranged in a cavity of the upper shell, the first magnetic conduction block and the second magnetic conduction block are distributed on two sides of the diaphragm assembly, the magnet is positioned in the cavity of the shell, and a formed direct current magnetic loop interacts with an alternating magnetic loop to generate force to drive the diaphragm assembly to vibrate. The invention reduces the cost of raw materials, has simple process, is convenient for realizing automation and reduces the manufacturing cost. Compared with manual production, the automatic production method is more stable in automation and easier to monitor the process parameters; the variation in capacity or variation in yield is easier to manage, which is particularly important for the extremely uncertain consumer electronics market.
Description
Technical Field
The invention belongs to the field of receivers, and particularly relates to a receiver easy to realize automation and a manufacturing method thereof.
Background
The existing telephone receiver is a balanced armature telephone receiver, and an armature penetrates through an air-core coil and is positioned between two magnets, and then is connected with a diaphragm above the armature through a connecting rod. The armature of the existing receiver needs to pass through the hollow coil, so that automation is difficult to realize. Two magnets are needed to be arranged on the jaw iron to bear the magnetic circuit, and the number of parts is large. The armature is centered between the two magnets, and the requirement on the manufacturing process is high.
Disclosure of Invention
The invention aims to provide a diaphragm assembly and a receiver which are easy to realize automation.
According to one aspect of the present invention, there is provided a diaphragm assembly comprising:
the vibration frame is not magnetic conductive and is provided with an inner hole;
The magnetic conduction vibration wing is clamped in an inner hole of the vibration frame, one end of the vibration wing is used as a first connecting part to be connected with a second connecting part of the vibration frame, and a gap is formed between the rest part of the vibration wing except the first connecting part and the inner hole;
The elastic membrane is attached to the surfaces of the vibrating frame and the vibrating wings, and the part of the membrane, which is positioned in the gap, is in a convex shape and is provided with a plurality of through holes with the aperture of 5 micrometers to 30 micrometers.
In some embodiments, the first connecting portion is fixedly clamped in the second connecting portion, the first connecting portion is provided with a groove recessed toward the body, the second connecting portion is provided with a protruding block protruding toward the inner hole, the protruding block is matched with the groove, and the protruding block is clamped in the groove and bonded through hot melt adhesive.
In some embodiments, the membrane is selected from mylar or polyurethane or silicone.
According to another aspect of the present invention, there is provided a receiver comprising:
The upper shell and the lower shell are both magnetic-conductive open box bodies, and one end of the shell is provided with a sound outlet;
The diaphragm assembly is transversely arranged in the cavity of the upper shell, and the outer edge of the vibrating frame is in sealing connection with the inner side wall of the shell;
The first magnetic conduction blocks and the second magnetic conduction blocks are distributed on two sides of the diaphragm assembly, the first magnetic conduction blocks are connected with the inner bottom of the lower shell, a coil is sleeved on the first magnetic conduction blocks, the second magnetic conduction blocks are connected with the inner bottom of the upper shell, after the coil is electrified, the first magnetic conduction blocks, the second magnetic conduction blocks, the upper shell, the lower shell and the alternating magnetic circuit formed by the vibrating wings,
And the magnet is positioned in the cavity of the shell, and the formed direct current magnetic loop interacts with the alternating magnetic loop to generate force to drive the diaphragm assembly to vibrate.
In some embodiments, the upper surface of the magnet is in adhesive connection with the inner bottom of the upper housing, the lower surface of the magnet is in adhesive connection with the first connecting portion and the connecting portion, and the magnet, the vibration wing and the upper housing form a direct current magnetic circuit.
According to another aspect of the present invention, there is provided a method of manufacturing a receiver,
Preparing a lower shell, sticking a first magnetic conduction block on the bottom of the lower shell through glue, and sleeving the wound coil on the first magnetic conduction block or winding the coil on the first magnetic conduction block;
Preparing an upper shell, and sticking a second magnetic conduction block on the inner bottom of the upper shell through glue;
preparing a diaphragm assembly, wherein the magnet is stuck on the first connecting part and the second connecting part through glue, the diaphragm assembly is stuck on the side wall of the upper shell through glue, and the magnet and the second magnetic conduction block are positioned between the upper shell and the diaphragm assembly;
and reversely buckling the upper shell connected with the diaphragm assembly on the lower shell, and connecting the upper shell and the lower shell through glue.
In some embodiments, the direct-current magnetic circuit further comprises a third magnetic conduction block, wherein the upper surface of the magnet is respectively in adhesive connection with the first connecting part and the second connecting part, the lower surface of the magnet is in adhesive connection with the second magnetic conduction block, the third magnetic conduction block is in adhesive connection with the inner bottom of the lower shell, and the magnet, the vibrating wings, the lower shell and the third magnetic conduction block form the direct-current magnetic circuit.
According to another aspect of the present invention, there is provided a method for manufacturing a receiver, comprising:
Preparing a lower shell, sticking a first magnetic conduction block on the bottom of the lower shell through glue, sleeving the wound coil on the first magnetic conduction block, or winding the coil on the first magnetic conduction block, sticking a third magnetic conduction block on the bottom of the lower shell through glue, and sticking a magnet on one end face of the third magnetic conduction block facing the upper shell through glue;
Preparing an upper shell, and sticking a second magnetic conduction block on the inner bottom of the upper shell through glue;
Preparing a diaphragm assembly, and adhering the diaphragm assembly to the side wall of the upper shell through glue so that the second magnetic conduction block is positioned between the upper shell and the diaphragm assembly;
and reversely buckling an upper shell connected with the diaphragm assembly on the lower shell, connecting the upper shell with the lower shell through glue, and adhering the magnet on the first connecting part and the second connecting part through glue.
In some embodiments, the direct-current magnetic circuit further comprises a fourth magnetic conduction block, wherein the upper surface of the fourth magnetic conduction block is respectively in adhesive connection with the first connecting part and the second connecting part, the lower surface of the fourth magnetic conduction block is in adhesive connection with the upper surface of the magnet, the bottom of the magnet is in adhesive connection with the inner bottom of the lower shell, and the magnet, the fourth magnetic conduction block, the vibration wings and the lower shell form the direct-current magnetic circuit.
According to another aspect of the present invention, there is provided a method for manufacturing a receiver, comprising:
Preparing a lower shell, sticking a first magnetic conduction block on the bottom of the lower shell through glue, sleeving the wound coil on the first magnetic conduction block, or winding the coil on the first magnetic conduction block, sticking a magnet on the bottom of the lower shell through glue, and sticking a fourth magnetic conduction block on one end face of the magnet facing the upper shell through glue;
Preparing an upper shell, and sticking a second magnetic conduction block on the inner bottom of the upper shell through glue;
Preparing a diaphragm assembly, and adhering the diaphragm assembly to the side wall of the upper shell through glue so that the second magnetic conduction block is positioned between the upper shell and the diaphragm assembly;
and reversely buckling an upper shell connected with the diaphragm assembly on the lower shell, connecting the upper shell with the lower shell through glue, and adhering the magnet on the first connecting part and the second connecting part through glue.
In some embodiments, the diaphragm assembly divides the inner cavity of the housing into two cavities of unequal volumes, the front cavity has a smaller volume than the rear cavity, and the sound outlet communicates with the cavity of smaller volume.
In some embodiments, the air gap between the first magnetic conductive block and the diaphragm assembly is 50 micrometers to 200 micrometers, the air gap between the second magnetic conductive block and the diaphragm assembly is 50 micrometers to 200 micrometers, and the difference between the air gap between the first magnetic conductive block and the diaphragm assembly and the air gap between the second magnetic conductive block and the diaphragm assembly is not more than 25 micrometers.
The beneficial effects are as follows: the invention reduces the cost of raw materials, has simple process, is convenient for realizing automation and reduces the manufacturing cost. Compared with manual production, the automatic production method is more stable in automation and easier to monitor the process parameters; the variation in capacity or variation in yield is easier to manage, which is particularly important for the extremely uncertain consumer electronics market.
Drawings
Fig. 1 is a schematic diagram of the structure of a receiver according to embodiment 1 of the present invention;
fig. 2 is a schematic diagram of the structure of a receiver according to embodiment 2 of the present invention;
Fig. 3 is a schematic diagram of the structure of a receiver according to embodiment 3 of the present invention;
fig. 4 is an exploded view of the diaphragm assembly of the receiver of embodiments 1-3 of the present invention;
Fig. 5 is a schematic view of the diaphragm assembly of the receiver according to embodiments 1-3 of the present invention after the diaphragm is attached to the vibrating frame;
fig. 6 is an assembled schematic view of the diaphragm assembly of the receiver of embodiments 1-3 of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
Example 1
Fig. 1 schematically shows a receiver according to an embodiment of the invention. As shown in fig. 1, the receiver includes a housing, a diaphragm assembly 3, a first magnetic conductive block 41, a coil 5, a second magnetic conductive block 42, and a magnet 6.
The housing is provided by an upper housing 11 and a lower housing 12 which are arranged in a butt-buckling manner. The upper shell 11 and the lower shell 12 are both magnetic-conductive open box bodies. One end of the shell is provided with a sound outlet 13. The diaphragm assembly 3 divides the housing into two cavities of unequal volumes, with the sound outlet 13 disposed in the cavity of smaller volume. The sound outlet 13 is arranged on one side with small cavity, and one side with large cavity is used as damping when working, the cavity is large in damping and small in work, and air in the sealed cavity is compressed or stretched to do little work, so that the output is facilitated. In this embodiment, the diaphragm assembly 3 divides the housing into a smaller front chamber and a larger rear chamber, and the sound outlet 13 is provided on a side wall of the housing forming the front chamber. The end part of the shell, which is provided with the sound outlet 13, is welded with a sound outlet pipe, the sound outlet pipe is communicated with the sound outlet 13, and sound generated by the receiver is emitted from the sound outlet 13 and then is diffused to the outside through the sound outlet pipe. The other end of the shell opposite to the end provided with the sound outlet 13 is provided with a wiring terminal, and the wiring terminal is connected with the coil 5 so as to conveniently electrify the coil 5.
As shown in fig. 4-6, the diaphragm assembly 3 includes a non-magnetically permeable vibrating frame 31, magnetically permeable vibrating wings 32, and a diaphragm 33 having elasticity. In order to achieve the above function, the vibration frame 31 is made of a non-magnetic material, the vibration wing 32 is made of a magnetic material, and the diaphragm 33 has elasticity. In this embodiment, the vibration frame 31 is made of stainless steel, the vibration wing 32 is made of iron, and the diaphragm 33 is made of polyurethane. The vibration frame 31 is provided with an inner hole formed by four frames in an end-to-end connection mode. The vibration wings 32 are caught in the inner holes of the vibration frame 31. One end of the vibration wing 32 is connected to the second connection portion 311 of the vibration frame 31 as a first connection portion 321, and a gap 34 is provided between the remaining portion of the vibration wing 32 excluding the first connection portion 321 and the inner hole, thereby facilitating the vibration of the vibration wing 32 between the inner holes of the vibration frame 31. The diaphragm 33 is formed in a convex shape 331 on the surface of the vibration frame 31 and the vibration wing 32, and provides a space for the vibration amplitude of the vibration wing 32. The elastic diaphragm 33 is provided with 1 to 10 through holes with a pore diameter of 5 to 30 micrometers, and the through holes are used for balancing the air pressure at two sides of the diaphragm 33, so that the diaphragm 33 can vibrate freely, and the holes are small enough to ensure that no sound leakage is generated. The through holes may be on the runway of the diaphragm 33 or on the oscillating wing 32 away from the oscillating end of the diaphragm 33. The first connecting portion 321 is fixedly clamped in the second connecting portion 311, the first connecting portion 321 is provided with a groove 322 recessed towards the body, the second connecting portion 311 is provided with a convex block 312 protruding towards the inner hole, the convex block 312 is matched with the groove 322, the convex block 312 is clamped in the groove 322 and is bonded through hot melt adhesive, and the connection firmness of the first connecting portion 321 and the second connecting portion 311 is improved. The volume of the diaphragm assembly 3 is smaller, and the overall volume of the telephone receiver can be reduced.
Continuing to refer to fig. 1, the diaphragm assembly 3 is disposed transversely within the cavity of the upper housing 11, with the outer edge of the vibrating frame 31 being sealingly connected to the inner side wall of the housing. Specifically, two protrusions are respectively disposed on two longer inner side walls of the upper case 11, four protrusions are disposed on the same plane, and the vibration frame 31 of the diaphragm assembly 3 is disposed on the four protrusions and is adhered to the inner side walls of the upper case 11 by glue. The diaphragm assembly 3 is disposed in parallel with the bottom surface of the upper case 11 and the bottom surface of the lower case 12, respectively. The first magnetic conductive block 41 and the second magnetic conductive block 42 are distributed on two sides of the diaphragm assembly 3. To ensure that the forces of the first magnetic block, the second magnetic block and the diaphragm are large enough to produce enough displacement to bring about sufficient sound pressure output, the air gap between the first magnetic block and the diaphragm assembly is 50-200 microns, and the air gap between the second magnetic block and the diaphragm assembly is 50-200 microns. The difference between the air gap between the first magnetic conduction block and the membrane component and the air gap between the second magnetic conduction block and the membrane component is not more than 25 microns, which is beneficial to the formation of an alternating magnetic loop. The first magnetic conductive block 41 is attached to the inner bottom of the lower case 12 by glue. The first magnetic conductive block 41 is sleeved with a coil 5. The second magnetic conductive block 42 is attached to the inner bottom of the upper case 11 by glue. After the coil 5 is electrified, the first magnetic conductive block 41, the second magnetic conductive block 42, the upper shell 11, the lower shell 12 and the oscillating wing 32 form an alternating magnetic circuit. The magnet 6 is located in the cavity of the housing, and in this embodiment, the upper surface of the magnet 6 is attached to the inner bottom of the upper housing 11, and the lower surface of the magnet 6 is attached to the first connecting portion 321 of the vibration frame 31 and the second connecting portion 311 of the vibration wing 32, respectively. The magnet 6, the vibrating wings 32 and the upper case 11 constitute a direct current magnetic circuit. The magnet 6, the oscillating wing 32 and the upper case 11 forming a direct current magnetic circuit are in direct contact, so that the direct current magnetic circuit is formed to be smooth. The direct current magnetic circuit interacts with the alternating magnetic circuit to generate force to drive the oscillating wing 32 to oscillate. The vibration wings 32 vibrate up and down, and air in the front cavity is pushed out or sucked by the diaphragm 33, so that the air is blown to make a sound, and sound pressure is formed at the sound outlet 13, so that sound is made.
The manufacturing method of the telephone receiver comprises the following steps: preparing a lower shell 12, sticking a first magnetic conduction block 41 on the bottom of the lower shell 12 through glue, and sleeving a wound coil 5 on the first magnetic conduction block 41, or directly winding the coil 5 on the first magnetic conduction block 41; preparing an upper shell 11, and adhering a second magnetic conduction block 42 to the inner bottom of the upper shell 11 through glue; preparing a diaphragm assembly 3, adhering a magnet 6 on the first connecting part 321 and the second connecting part 311 through glue, adhering the diaphragm assembly 3 on the side wall of the upper shell 11 through glue, and enabling the magnet to be positioned between the upper shell 11 and the diaphragm assembly 3; the upper housing 11 with the diaphragm assembly 3 attached thereto is back-fastened to the lower housing 12 and attached thereto by glue.
And the telephone receiver is manufactured in a stacking mode, so that the process is simple, the telephone receiver is suitable for automatic production, and the production cost is greatly reduced.
Example two
Fig. 2 schematically shows a receiver according to another embodiment of the invention. As shown in fig. 2, the receiver includes a housing, a diaphragm assembly 3, a first magnetic conductive block 41, a coil 5, a second magnetic conductive block 42, and a magnet 6.
The housing is provided by an upper housing 11 and a lower housing 12 which are arranged in a butt-buckling manner. The upper shell 11 and the lower shell 12 are both magnetic-conductive open box bodies. One end of the shell is provided with a sound outlet 13. The diaphragm assembly 3 divides the housing into two cavities of unequal volumes, with the sound outlet 13 disposed in the cavity of smaller volume. In this embodiment, the diaphragm assembly 3 divides the housing into a smaller front chamber and a larger rear chamber, the magnet 6 being located within the chamber, and the sound outlet 13 being provided in a side wall of the housing of the chamber. The other end of the shell opposite to the sound outlet 13 is provided with a wiring terminal, and the wiring terminal is connected with the coil 5 so as to conveniently electrify the coil 5.
As shown in fig. 4-6, the diaphragm assembly 3 includes a non-magnetically permeable vibrating frame 31, magnetically permeable vibrating wings 32, and a diaphragm 33 having elasticity. In order to achieve the above function, the vibration frame 31 is made of a non-magnetic material, the vibration wing 32 is made of a magnetic material, and the diaphragm 33 has elasticity. In this embodiment, the vibration frame 31 is made of aluminum alloy stainless steel, the vibration wing 32 is made of iron-nickel alloy, and the diaphragm 33 is made of Mylar. The vibration frame 31 is provided with an inner hole. The vibration wings 32 are caught in the inner holes of the vibration frame 31. One end of the vibration wing 32 is connected to the second connection portion 311 of the vibration frame 31 as a first connection portion 321, and a gap 34 is provided between the remaining portion of the vibration wing 32 excluding the first connection portion 321 and the inner hole, thereby facilitating the vibration of the vibration wing 32 between the inner holes of the vibration frame 31. The diaphragm 33 is attached to the surfaces of the vibration frame 31 and the vibration wings 32, and the portion of the diaphragm 33 located in the gap 34 is in a convex shape 331, so that a space is provided for vibration of the vibration wings 32. The elastic diaphragm 33 is provided with 1 to 10 through holes with a pore diameter of 5 to 30 micrometers, and the through holes are used for balancing the air pressure at two sides of the diaphragm 33, so that the diaphragm 33 can vibrate freely, and the holes are small enough to ensure that no sound leakage is generated. The through holes may be on the runway of the diaphragm 33 or on the oscillating wing 32 away from the oscillating end of the diaphragm 33. The first connecting portion 321 is fixedly clamped in the second connecting portion 311, the first connecting portion 321 is provided with a groove 322 recessed towards the body, the second connecting portion 311 is provided with a convex block 312 protruding towards the inner hole, the convex block 312 is matched with the groove 322, the convex block 312 is clamped in the groove 322 and is bonded through hot melt adhesive, and the connection firmness of the first connecting portion 321 and the second connecting portion 311 is improved.
Continuing to refer to fig. 2, the diaphragm assembly 3 is disposed transversely within the cavity of the upper housing 11, with the outer edge of the vibrating frame 31 being sealingly connected to the inner side wall of the housing. Specifically, two protrusions are respectively disposed on two longer inner side walls of the upper case 11, four protrusions are disposed on the same plane, and the vibration frame 31 of the diaphragm assembly 3 is disposed on the four protrusions and is adhered to the inner side walls of the upper case 11 by glue. The first magnetic conductive block 41 and the second magnetic conductive block 42 are distributed on two sides of the diaphragm assembly 3. To ensure that the forces of the first magnetic block, the second magnetic block and the diaphragm are large enough to produce enough displacement to bring about sufficient sound pressure output, the air gap between the first magnetic block and the diaphragm assembly is 50 micrometers to 200 micrometers, and the air gap between the second magnetic block and the diaphragm assembly is 50 micrometers to 200 micrometers. The difference between the air gap between the first magnetic conduction block and the membrane component and the air gap between the second magnetic conduction block and the membrane component is not more than 25 microns, which is beneficial to the formation of an alternating magnetic loop. The first magnetic conductive block 41 is attached to the inner bottom of the lower case 12 by glue. The first magnetic conductive block 41 is sleeved with a coil 5. The second magnetic conductive block 42 is attached to the inner bottom of the upper case 11 by glue. After the coil 5 is energized, the first magnetic conductive block 41, the second magnetic conductive block 42, the upper housing 11, the lower housing 12 and the oscillating wing 32 form an alternating magnetic circuit. The magnet 6 is located within the cavity of the housing. In this embodiment, the upper surface of the magnet 6 is adhesively connected to the first connecting portion 321 of the vibration frame 31 and the second connecting portion 311 of the vibration wing 32, respectively, and the lower surface of the magnet 6 is adhesively connected to the third magnetic block 43, and the third magnetic block 43 is adhesively connected to the inner bottom of the lower case 12. The magnet 6, the oscillating vane 32, the lower housing 12 and the third magnetic conductive block 43 constitute a direct current magnetic circuit. The magnet 6, the oscillating vane 32, the lower case 12 and the third magnetic conductive block 43 forming the dc magnetic circuit are in direct contact, so that the dc magnetic circuit is formed to be smooth. The direct current magnetic circuit interacts with the alternating magnetic circuit to generate force to drive the oscillating wing 32 to oscillate. The vibration wings 32 vibrate up and down, and air in the front cavity is pushed out or sucked by the diaphragm 33, so that the air is blown to make a sound, and sound pressure is formed at the sound outlet 13, so that sound is made.
The manufacturing method of the telephone receiver comprises the following steps: the lower shell 12 is prepared, a first magnetic conduction block 41 is stuck to the bottom of the lower shell 12 through glue, the wound coil 5 is sleeved on the first magnetic conduction block 41, or the coil 5 is wound on the first magnetic conduction block 41, a third magnetic conduction block 43 is stuck to the bottom of the lower shell 12 through glue, and a magnet 6 is stuck to one end face of the third magnetic conduction block 43 facing the upper shell 11 through glue. The upper case 11 is prepared, and a second magnetic conductive block 42 is adhered to the inner bottom of the upper case 11 by glue. The diaphragm assembly 3 is prepared, the diaphragm assembly 3 is adhered to the side wall of the upper shell 11 through glue, and the second magnetic conduction block 42 is located between the upper shell 11 and the diaphragm assembly 3. The upper case 11 to which the diaphragm assembly 3 is connected is inversely fastened to the lower case 12, and is connected by glue, and the magnet 6 is attached to the first connection portion 321 and the second connection portion 311 by glue.
And the telephone receiver is manufactured in a stacking mode, so that the process is simple, the telephone receiver is suitable for automatic production, and the production cost is greatly reduced.
Example III
Fig. 2 schematically shows a receiver according to another embodiment of the invention. As shown in fig. 2, the receiver includes a housing, a diaphragm assembly 3, a first magnetic conductive block 41, a coil 5, a second magnetic conductive block 42, and a magnet 6.
The housing is provided by an upper housing 11 and a lower housing 12 which are arranged in a butt-buckling manner. The upper shell 11 and the lower shell 12 are both magnetic-conductive open box bodies. One end of the shell is provided with a sound outlet 13. The diaphragm assembly 3 divides the housing into two cavities of unequal volumes, with the sound outlet 13 disposed in the cavity of smaller volume. In this embodiment, the diaphragm assembly 3 divides the housing into a smaller front chamber and a larger rear chamber, the magnet 6 being located within the chamber, and the sound outlet 13 being provided in a side wall of the housing of the chamber. The other end of the shell opposite to the sound outlet 13 is provided with a wiring terminal, and the wiring terminal is connected with the coil 5 so as to conveniently electrify the coil 5.
As shown in fig. 4-6, the diaphragm assembly 3 includes a non-magnetically permeable vibrating frame 31, magnetically permeable vibrating wings 32, and a diaphragm 33 having elasticity. In order to achieve the above function, the vibration frame 31 is made of a non-magnetic material, the vibration wing 32 is made of a magnetic material, and the diaphragm 33 has elasticity. In this embodiment, the vibration frame 31 is made of plastic, the vibration wing 32 is made of iron-nickel alloy, and the diaphragm 33 is made of silica gel. The vibration frame 31 is provided with an inner hole. The vibration wings 32 are caught in the inner holes of the vibration frame 31. One end of the vibration wing 32 is connected to the second connection portion 311 of the vibration frame 31 as a first connection portion 321, and a gap 34 is provided between the remaining portion of the vibration wing 32 excluding the first connection portion 321 and the inner hole, thereby facilitating the vibration of the vibration wing 32 between the inner holes of the vibration frame 31. The diaphragm 33 is attached to the surfaces of the vibration frame 31 and the vibration wings 32, and the portion of the diaphragm 33 located in the gap 34 is in a convex shape 331, so that a space is provided for vibration of the vibration wings 32. The elastic diaphragm 33 is provided with 1 to 10 through holes with a pore diameter of 5 to 30 micrometers, and the through holes are used for balancing the air pressure at two sides of the diaphragm 33, so that the diaphragm 33 can vibrate freely, and the holes are small enough to ensure that no sound leakage is generated. The through holes may be on the runway of the diaphragm 33 or on the oscillating wing 32 away from the oscillating end of the diaphragm 33. The first connecting portion 321 is fixedly clamped in the second connecting portion 311, the first connecting portion 321 is provided with a groove 322 recessed towards the body, the second connecting portion 311 is provided with a convex block 312 protruding towards the inner hole, the convex block 312 is matched with the groove 322, the convex block 312 is clamped in the groove 322 and is bonded through hot melt adhesive, and the connection firmness of the first connecting portion 321 and the second connecting portion 311 is improved.
Continuing to refer to fig. 3, the diaphragm assembly 3 is disposed transversely within the cavity of the upper housing 11, with the outer edge of the vibrating frame 31 being sealingly connected to the inner side wall of the housing. Specifically, two protrusions are respectively disposed on two longer inner side walls of the upper case 11, four protrusions are disposed on the same plane, and the vibration frame 31 of the diaphragm assembly 3 is disposed on the four protrusions and is adhered to the inner side walls of the upper case 11 by glue. The first magnetic conductive block 41 and the second magnetic conductive block 42 are distributed on two sides of the diaphragm assembly 3. To ensure that the forces of the first magnetic block, the second magnetic block and the diaphragm are large enough to produce enough displacement to bring about sufficient sound pressure output, the air gap between the first magnetic block and the diaphragm assembly is 50-200 microns, and the air gap between the second magnetic block and the diaphragm assembly is 50-200 microns. The difference between the air gap between the first magnetic conduction block and the membrane component and the air gap between the second magnetic conduction block and the membrane component is not more than 25 microns, which is beneficial to the formation of an alternating magnetic loop. The first magnetic conductive block 41 is attached to the inner bottom of the lower case 12 by glue. The first magnetic conductive block 41 is sleeved with a coil 5. The second magnetic conductive block 42 is attached to the inner bottom of the upper case 11 by glue. After the coil 5 is energized, the first magnetic conductive block 41, the second magnetic conductive block 42, the upper housing 11, the lower housing 12 and the oscillating wing 32 form an alternating magnetic circuit. The magnet 6 is located within the cavity of the housing. In this embodiment, the lower surface of the magnet 6 is attached to the inner bottom of the lower case 12 by glue, the upper surface of the magnet 6 is attached to the lower surface of the fourth magnetizer, and the upper surface of the fourth magnetizer is attached to the first connecting portion 321 of the vibration frame 31 and the second connecting portion 311 of the vibration wing 32 by glue, respectively. The magnet 6, the fourth magnetic block 44, the oscillating vane 32 and the lower housing 12 constitute a direct current magnetic circuit. The magnet 6, the fourth magnetic conductive block 44, the oscillating vane 32 and the lower case 12 forming a direct current magnetic circuit are in direct contact, so that the direct current magnetic circuit is formed. The direct current magnetic circuit interacts with the alternating magnetic circuit to generate force to drive the oscillating wing 32 to oscillate. The vibration wings 32 vibrate up and down, and air in the front cavity is pushed out or sucked by the diaphragm 33, so that the air is blown to make a sound, and sound pressure is formed at the sound outlet 13, so that sound is made.
The manufacturing method of the telephone receiver comprises the following steps: preparing a lower shell 12, adhering a first magnetic conduction block 41 to the bottom of the lower shell 12 through glue, and sleeving the wound coil 5 on the first magnetic conduction block 41 or winding the coil 5 on the first magnetic conduction block 41; the magnet 6 is adhered to the bottom of the lower housing 12 by glue, and the fourth magnetic conductive block 44 is adhered to an end surface of the magnet 6 facing the upper housing 11 by glue. The upper case 11 is prepared, and a second magnetic conductive block 42 is adhered to the inner bottom of the upper case 11 by glue. The diaphragm assembly 3 is prepared, the diaphragm assembly 3 is adhered to the side wall of the upper shell 11 through glue, and the second magnetic conduction block 42 is located between the upper shell 11 and the diaphragm assembly 3. The upper case 11 to which the diaphragm assembly 3 is connected is inversely fastened to the lower case 12, and is connected by glue, and the magnet 6 is attached to the first connection portion 321 and the second connection portion 311 by glue.
And the telephone receiver is manufactured in a stacking mode, so that the process is simple, the telephone receiver is suitable for automatic production, and the production cost is greatly reduced.
What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.
Claims (11)
1. A receiver, comprising:
The upper shell and the lower shell are both magnetic-conductive open box bodies, and one end of the shell is provided with a sound outlet;
The diaphragm assembly comprises a non-magnetic vibrating frame, wherein the vibrating frame is provided with an inner hole;
The magnetic conduction vibration wing is clamped in an inner hole of the vibration frame, one end of the vibration wing is used as a first connecting part to be connected with a second connecting part of the vibration frame, and a gap is formed between the rest part of the vibration wing except the first connecting part and the inner hole;
The elastic membrane is attached to the surfaces of the vibrating frame and the vibrating wings, and the part of the membrane, which is positioned in the gap, is in a convex shape and is provided with a plurality of through holes with the aperture of 5 micrometers to 30 micrometers; the diaphragm assembly is transversely arranged in the cavity of the upper shell, and the outer edge of the vibrating frame is connected with the inner side wall of the shell in a sealing way;
The first magnetic conduction blocks and the second magnetic conduction blocks are distributed on two sides of the diaphragm assembly, the first magnetic conduction blocks are connected with the inner bottom of the lower shell, a coil is sleeved on the first magnetic conduction blocks, the second magnetic conduction blocks are connected with the inner bottom of the upper shell, a wiring terminal is arranged on the other end of the shell opposite to the end provided with the sound outlet, the wiring terminal is connected with the coil, after the coil is electrified, the first magnetic conduction blocks, the second magnetic conduction blocks, the upper shell, the lower shell and the alternating magnetic circuit formed by the vibrating wings are arranged on the first magnetic conduction blocks,
And the magnet is positioned in the cavity of the shell, and the formed direct current magnetic loop interacts with the alternating magnetic loop to generate force to drive the diaphragm assembly to vibrate.
2. The receiver according to claim 1, wherein an upper surface of the magnet is attached to an inner bottom of the upper case, a lower surface of the magnet is attached to the first connecting portion and the connecting portion, respectively, and the magnet, the vibrating fin, and the upper case constitute a dc magnetic circuit.
3. The receiver according to claim 1, wherein the first connecting portion is fixedly clamped in the second connecting portion, the first connecting portion is provided with a groove recessed toward the body, the second connecting portion is provided with a projection protruding toward the inner hole, the projection is matched with the groove, and the projection is clamped in the groove and bonded through hot melt adhesive.
4. A receiver according to claim 3, characterized in that the membrane is selected from mylar or polyurethane or silicone.
5. The receiver of claim 1, further comprising a third magnetic conductive block, wherein the upper surface of the magnet is adhesively connected to the first connection portion and the second connection portion, the lower surface of the magnet is adhesively connected to the second magnetic conductive block, the third magnetic conductive block is adhesively connected to the inner bottom of the lower case, and the magnet, the vibrating wing, the lower case, and the third magnetic conductive block form a dc magnetic circuit.
6. The receiver according to claim 1, further comprising a fourth magnetic block, wherein an upper surface of the fourth magnetic block is adhesively connected to the first connecting portion and the second connecting portion, respectively, a lower surface of the fourth magnetic block is adhesively connected to an upper surface of the magnet, a bottom of the magnet is adhesively connected to an inner bottom of the lower case, and the magnet, the fourth magnetic block, the vibrating wing, and the lower case constitute a direct-current magnetic circuit.
7. The receiver of any one of claims 2, 5 or 6, wherein the diaphragm assembly divides the interior cavity of the housing into front and rear chambers of unequal volumes, the front chamber having a smaller volume than the rear chamber, the sound outlet communicating with the smaller volume chamber.
8. The microphone of claim 1 wherein the air gap between the first magnetically permeable block and the diaphragm assembly is 50 microns to 200 microns, the air gap between the second magnetically permeable block and the diaphragm assembly is 50 microns to 200 microns, and the difference between the air gap between the first magnetically permeable block and the diaphragm assembly and the air gap between the second magnetically permeable block and the diaphragm assembly is no more than 25 microns.
9. A method for making a receiver as defined in claim 2, wherein,
Preparing a lower shell, sticking a first magnetic conduction block on the bottom of the lower shell through glue, and sleeving the wound coil on the first magnetic conduction block or winding the coil on the first magnetic conduction block;
Preparing an upper shell, and sticking a second magnetic conduction block on the inner bottom of the upper shell through glue;
preparing a diaphragm assembly, wherein the magnet is stuck on the first connecting part and the second connecting part through glue, the diaphragm assembly is stuck on the side wall of the upper shell through glue, and the magnet and the second magnetic conduction block are positioned between the upper shell and the diaphragm assembly;
and reversely buckling the upper shell connected with the diaphragm assembly on the lower shell, and connecting the upper shell and the lower shell through glue.
10. A method of making a receiver as claimed in claim 5, comprising:
Preparing a lower shell, sticking a first magnetic conduction block on the bottom of the lower shell through glue, sleeving the wound coil on the first magnetic conduction block, or winding the coil on the first magnetic conduction block, sticking a third magnetic conduction block on the bottom of the lower shell through glue, and sticking a magnet on one end face of the third magnetic conduction block facing the upper shell through glue;
Preparing an upper shell, and sticking a second magnetic conduction block on the inner bottom of the upper shell through glue;
Preparing a diaphragm assembly, and adhering the diaphragm assembly to the side wall of the upper shell through glue so that the second magnetic conduction block is positioned between the upper shell and the diaphragm assembly;
and reversely buckling an upper shell connected with the diaphragm assembly on the lower shell, connecting the upper shell with the lower shell through glue, and adhering the magnet on the first connecting part and the second connecting part through glue.
11. A method for making a receiver as defined in claim 6, wherein,
Preparing a lower shell, sticking a first magnetic conduction block on the bottom of the lower shell through glue, sleeving the wound coil on the first magnetic conduction block, or winding the coil on the first magnetic conduction block, sticking a magnet on the bottom of the lower shell through glue, and sticking a fourth magnetic conduction block on one end face of the magnet facing the upper shell through glue;
Preparing an upper shell, and sticking a second magnetic conduction block on the inner bottom of the upper shell through glue;
Preparing a diaphragm assembly, and adhering the diaphragm assembly to the side wall of the upper shell through glue so that the second magnetic conduction block is positioned between the upper shell and the diaphragm assembly;
and reversely buckling an upper shell connected with the diaphragm assembly on the lower shell, connecting the upper shell with the lower shell through glue, and adhering the magnet on the first connecting part and the second connecting part through glue.
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| CN201810972827.7A CN108924707B (en) | 2018-08-24 | 2018-08-24 | Telephone receiver and manufacturing method thereof |
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| CN201810972827.7A CN108924707B (en) | 2018-08-24 | 2018-08-24 | Telephone receiver and manufacturing method thereof |
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| WO2023005268A1 (en) * | 2021-07-28 | 2023-02-02 | 深圳市长盈精密技术股份有限公司 | Balanced armature driver, balanced armature driver assembly method, and receiver |
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