A kind of receiver
Technical field
The utility model is related to receiver technical fields, and in particular to a kind of receiver.
Background technology
Receiver is a kind of microminiature electroacoustic that audio electrical signal is converted into voice signal under the conditions of voiceless sound leakage
Device to realize audio playback, is widely used in the portable electronic devices such as mobile phone, laptop, earphone, hearing aid neck
Domain.
Receiver can be divided into moving-coil type, electromagnetic type (moving-iron type), piezoelectric type, carbon granules formula etc. by operation principle, wherein dynamic iron
Due to stable frequency response curve, the features such as high sensitivity, is widely used formula receiver.The operation principle of moving-iron type receiver
Converted for electromagnetic energy, i.e., sound sent to electromagnetic coil with ac signal pattern, electromagnetic coil generate electromagnetic field effect in
Balanced armature, in magnetic fields lower band dynamic balancing armature chatter, balanced armature one end passes through the magnet positioned at balanced armature both sides
Guide pin is connect with vibrating diaphragm, and vibrating diaphragm does the vibration of corresponding frequencies therewith under the vibration of balanced armature, so as to which surrounding air be agitated to do
Corresponding sports, by sound reproduction.
The structure of current moving-iron type receiver mainly includes, shell, if vibrating diaphragm mechanism inside the shell, along perpendicular to shaking
Shell is divided into the first cavity and the second cavity by the setting direction of film mechanism, vibrating diaphragm mechanism;It is horizontally disposed with and takes the shape of the letter U in second cavity
Balanced armature, the coil being set in parallel the first parallel arms of armature, positioned at the first magnet steel of the counter-jib both sides and second
Magnet steel, two blocks of magnet steel are each attached on shell;Coil is close to the arc transition of U-shaped, and two blocks of magnet steel are close to the openend of U-shaped;U
Second parallel arms of shape armature are located at the lower section of the first arm, and end stretches out the first parallel arms and perpendicular to being provided with guide pin or biography
The oscillating plate of vibrating diaphragm mechanism is connected at the top of lever, guide pin or drive link.
The receiver of this structure is passed through alternating current in coil so that balanced armature band polarized, in the first magnet steel and
Under the action of the fixed magnetic field of second magnet steel, do of reciprocating vibration and the oscillating plate in vibrating diaphragm mechanism is driven to do by guide rod back and forth shake
It is dynamic, to realize voiced process.But the receiver of this structure need set a U-shaped balanced armature, two magnet, coil with
And the guide pin or drive link of connection U-shaped balanced armature and vibrating diaphragm, cause complicated;The vibration of oscillating plate must by guide pin or
Drive link drives so that the response time of reciprocating vibration of oscillating plate is long, influence the sensitivity of receiver.
Utility model content
Therefore, the technical problem to be solved by the present invention is to moving-iron type telephone receiver structure of the prior art is overcome to answer
The problem of miscellaneous and poor sensitivity.
For this purpose, the utility model provides a kind of receiver, including:
Shell has hollow lumen;
Vibrating diaphragm mechanism is arranged in the hollow lumen, and the hollow lumen is divided into the first cavity and the second cavity;
Its with vibrating body, the vibrating body have at least one end fix vibration section on the housing and with the vibration section
It connects and stretches into freedom portion in first cavity relative to the setting direction of the vibration section;
Electromagnetic mechanism, including being arranged on the coil in first cavity and being set in the freedom portion and being arranged on
Part occurs at least one first magnetic of the vibration section either side;
The electromagnetic field that the coil generates after being powered occurs with first magnetic under the fixed magnetic field effect that part generates, to drive
The of reciprocating vibration of the setting direction perpendicular to the vibrating diaphragm mechanism is done in the dynamic freedom portion and the vibration section.
Optionally, the vibrating body is using oscillating plate made of soft magnetic materials;
The vibrating diaphragm mechanism also has a fixed fixed frame on the housing, and one end of the oscillating plate is fixed on described
On fixed frame, the other end is vacantly in the inner cavity of the fixed frame and towards bending in first cavity to form the freedom
Portion, the rest part of the oscillating plate form the vibration section;And it is fixed on the fixed frame back to the freedom portion one
On side surface, and at least cover the tibial membrane in gap between the fixed frame and the oscillating plate.
Optionally, the vibration section is using oscillating plate made of elastic material;The freedom portion is fixed on the vibration
Towards on one side surface of the first cavity, the freedom portion is made plate of soft magnetic materials;
The neighboring of the oscillating plate is each attached on the internal face of the shell, to form first cavity and institute
State the second cavity.
Optionally, the vibration section is using oscillating plate made of non-soft magnetic materials, and the freedom portion is fixed on described shake
Towards on one side surface of the first cavity, the freedom portion is made movable plate of soft magnetic materials;
The vibrating diaphragm mechanism also has a fixed fixed frame on the housing, and one end of the oscillating plate is fixed on described
On fixed frame, the other end is vacantly in the inner cavity of the fixed frame;And be fixed on the fixed frame back to the freedom portion
On one side surface, and at least cover the tibial membrane in gap between the fixed frame and the oscillating plate.
Optionally, the vibrating body also has the company on described vibration section one end for being vertically fixed on the freedom portion
Socket part, the connecting portion are made of soft magnetic materials, and the freedom portion is fixed on by the connecting portion on the vibration section.
Optionally, be fixed on the oscillating plate far from one end of the freedom portion on the connecting portion, rest part with
Gap is formed between the vibration section.
Optionally, the electromagnetic mechanism further includes the second magnetic generation part being arranged in the shell, for providing fixation
Magnetic field;
Part and first magnetic occur for second magnetic, and to occur part opposite one by one and respectively positioned at the both sides of the vibrating body,
And avoid the freedom portion;
Part occurs for second magnetic and first magnetic occur the opposed facing one end of part polarity on the contrary, and perpendicular to
On the direction of the vibrating diaphragm mechanism setting, required vibration gap is reserved between the vibration section respectively.
Optionally, the first magnetic generation part is arranged in the first cavity and is set close to the freedom portion, and edge is parallel to
In the setting direction of the vibrating diaphragm mechanism, with the coil preset clearance;Or
Part occurs for first magnetic between the vibration section and the coil, and respectively with the vibration section and described
Vibration gap is reserved between coil.
Optionally, the shell includes the first shell surrounded by the first bottom surface and side wall and by the second bottom surface and side wall
The second shell surrounded, the openings snap-fit of the first shell and the second shell is to surround the hollow lumen.
Optionally, the vibrating diaphragm mechanism is fixed between the first shell opening and the opening of the second shell.
Receiver provided by the utility model has the following advantages relative to the prior art:
1. receiver provided by the utility model, including shell, vibrating diaphragm mechanism and electromagnetic mechanism.Wherein, vibrating diaphragm mechanism
Hollow lumen is divided into the first cavity and the second cavity;And with vibrating body, vibrating body is with vibration section and freedom portion, vibration
Portion is fixed on the shell at least one end, and freedom portion connect with vibration section and stretches into the first cavity relative to the setting direction of vibration section
In.Electromagnetic mechanism includes being arranged in the first cavity and being sheathed on the coil in freedom portion and is arranged on vibration section either side extremely
Part occurs for few first magnetic.The electromagnetic field and the first magnetic that coil generates after being powered occur under the fixed magnetic field effect that part generates,
It can drive freedom portion and setting direction that vibration section is done perpendicular to vibrating diaphragm mechanism is of reciprocating vibration.
Receiver provided by the utility model does not need to setting U-shaped balanced armature, vibrating diaphragm and connection horseshoe clamp weighing apparatus rank
The guide pin or drive link of iron and vibrating diaphragm, it is only necessary to the vibrating diaphragm mechanism of an entirety be set, simplify the whole knot of receiver
Structure.By being set in the coil generating electromagnetic field of freedom portion in vibrating diaphragm mechanism, and then electromagnetic field interacts with fixed magnetic field, from
By portion and vibration section, that is, vibrating body vibration sounding, without by any drive apparatus such as guide pin or drive link, greatly reducing
The vibratory response time improves the sensitivity of receiver.
2. receiver provided by the utility model, vibrating body is using oscillating plate made of soft magnetic materials, and vibrating diaphragm mechanism is also
With fixed frame and tibial membrane, fixed frame is fixed on the shell, and one end of oscillating plate is fixed on fixed frame, and the other end vacantly exists
To form freedom portion in the inner cavity of fixed frame and towards bending in the first cavity, the rest part of oscillating plate forms vibration section;Hair
Sound film is fixed on fixed frame back on one side surface of freedom portion, and at least covers the hair in gap between fixed frame and oscillating plate
Sound film.
The receiver of this structure, since vibrating body is made of soft magnetic materials, after coil is powered, the freedom of oscillating plate
Portion and vibration section, which can be magnetized, takes polarity, and under the magnetic fields of fixed magnetic field, oscillating plate is by repulsive force or attraction
Power, since one end of oscillating plate is fixed on fixed frame, the other end is hanging, therefore hanging one end is in the lumen with fixed one
It holds as supporting point, is vibrated towards the first cavity or the second cavity direction, since tibial membrane has at least covered fixed frame and vibration
Gap between plate, therefore opened between the first cavity and the second cavity by seal isolation, and then oscillating plate can be agitated in inner cavity
Air realize sounding.Tibial membrane and oscillating plate are combined together by the vibrating diaphragm mechanism of the structure, while realizing vibration sounding,
Traditional drive link or guide pin are eliminated, simplifies the structure of vibrating diaphragm mechanism, and oscillating plate directly drives tibial membrane to agitate sky
Gas improves the sensitivity of vibrating diaphragm mechanism vibrations and the sounding effect of receiver.
3. receiver provided by the utility model, vibration section is using oscillating plate made of elastic material, and freedom portion is fixed
On one side surface of oscillating plate the first cavity of direction, freedom portion is made of soft magnetic materials;The neighboring of oscillating plate is fixed
On the internal face of shell, hollow lumen is divided into the first cavity and the second cavity.Since freedom portion uses soft magnetic materials
It is made, after coil is powered, according to electromagnetic induction principle, the electromagnetic field that coil generates is concentrated in freedom portion, and electromagnetic field is with consolidating
Under the driving effect of fixed-field, freedom portion is driven the oscillating plate court made of elastic material by repulsive force or attraction
Air is agitated to realize sounding to the first cavity or the second cavity direction.The vibrating diaphragm mechanism of the structure only needs an oscillating plate and one
A freedom portion, structure is very simple, and then also simplifies assembling process.
4. receiver provided by the utility model, vibrating body also has the close vibration section one end for being vertically fixed on freedom portion
On connecting portion, connecting portion is made of soft magnetic materials, and freedom portion is fixed on by connecting portion on vibration section.The setting of connecting portion
On the one hand being bonded between freedom portion and vibration section is ensure that, on the other hand, since connecting portion and freedom portion are all by soft
Magnetic material is made, therefore after being powered to coil, and freedom portion and connecting portion can be magnetized and take polarity, since connecting portion is fixed
On vibration section, the arbitrary side that part is arranged on vibration section, therefore the interaction of fixed magnetic field and electromagnetic field occur for the first magnetic
More directly, magnetic force is stronger, and then enhances the Oscillation Amplitude of vibration section.
5. receiver provided by the utility model, the first magnetic occurs part and is set close to freedom portion, and edge is parallel to vibrating diaphragm mechanism
Setting direction on, with coil preset clearance;Or first magnetic part occurs between vibration section and coil, and respectively with shaking
It is dynamic that vibration gap is reserved between portion and coil.It is parallel in the setting direction of vibrating diaphragm mechanism and coil on edge when part occurs for the first magnetic
Preset clearance is thinned the thickness of the first cavity to a certain extent.When the first magnetic occur part between vibration section and coil, and
Vibration gap is reserved between vibration section and coil respectively so that part occurs for the first magnetic closer to freedom portion, thus strengthens magnetic
Field intermolecular forces.
6. receiver provided by the utility model, shell include the first shell surrounded by the first bottom surface and side wall and by
The openings snap-fit of the second shell that second bottom surface and side wall surround, first shell and second shell to surround hollow lumen, and
Vibrating diaphragm mechanism is fixed between first shell opening and the opening of second shell.The receiver of the structure is divided into three modules, the
One housing, second shell and vibrating diaphragm mechanism during assembling, can individually assemble three modules, finally by first shell and second
During the openings snap-fit assembling of housing, diaphragm structure is fixed between first shell and the opening of second shell, that is, completes assembling
Process.Assembling process is very simple, saves assembly time, improves efficiency of assembling.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
Under the premise of labour, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram of receiver provided in the utility model embodiment 1;
Fig. 2 is the structure diagram of the vibrating diaphragm mechanism of receiver in Fig. 1;
Fig. 3 is the structure diagram of receiver provided in the utility model embodiment 2;
Fig. 4 is the structure diagram of receiver provided in the utility model embodiment 5;
Fig. 5 is the structure diagram of receiver provided in the utility model embodiment 6;
Reference sign:
1- shells;The first cavitys of 11-;The second cavitys of 12-;13- first shells;14- second shells;15- sound outlet holes;16-
Sound guide tube;
2- vibrating diaphragms mechanism;21- vibration sections;22- freedom portion;23- fixed frames;24- connecting portions;25- tibial membranes;
3- electromagnetic mechanisms;31- coils;Part occurs for the first magnetic of 32-;Part occurs for the second magnetic of 33-.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected range.
" on ", " under ", "left", "right", " vertical ", " water it should be noted that term in the description of the present invention,
It is flat ", " interior ", the orientation of the instructions such as " outer " or position relationship for based on orientation shown in the drawings or position relationship, merely to just
In description the utility model and simplified description rather than instruction or imply that signified device or element must be with specific sides
Position, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " first ",
" second " is only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection;Can be mechanical connection or electrical connection;It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition
Concrete meaning of the language in the utility model.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not forming conflict can be combined with each other.
Embodiment 1
A kind of receiver is present embodiments provided, as shown in Figure 1, including shell 1, vibrating diaphragm mechanism 2 and electromagnetic mechanism 3.
Shell 1 includes the first shell 13 surrounded by the first bottom surface and side wall and surrounded by the second bottom surface and side wall the
Two housings 14, the openings snap-fit of first shell 13 and second shell 14 is to surround hollow lumen.First shell 13 and second shell
14 are made of Alperm, and sound outlet hole 15 is provided on the side wall of second shell 14, the periphery setting of sound outlet hole 15
There is sound guide tube 16, sound guide tube 16 is arranged on the side wall of shell 1.
It should be noted that be detachably to install between first shell 13 and second shell 14, the setting position of sound outlet hole 15
It puts unlimited, can also be arranged on the side wall of first shell 13 or be arranged on simultaneously the side of first shell 13 and second shell 14
On wall.
Vibrating diaphragm mechanism 2 is fixed between the opening of first shell 13 and second shell 14, and will be hollow interior in housing
Chamber is separated into the first cavity 11 in first shell 13 and the second cavity 12 in second shell 14.
As depicted in figs. 1 and 2, vibrating diaphragm mechanism 2 includes fixed frame 23, vibrating body and tibial membrane 25.
The outer edge of fixed frame 23 is fixed between the opening of first shell 13 and second shell 14, and generally spot welding is fixed
Mode either glue mode or connects and fixes mode;
Vibrating body is oscillating plate made of a soft magnetic materials, and one end of oscillating plate is fixed on fixed frame 23, and the other end hangs
To form freedom portion 22 in the inner cavity of fixed frame 23 and towards bending in the first cavity 11, the rest part of oscillating plate is formed sky
Vibration section 21.It should be noted that it is shown in Figure 2 be oscillating plate also non-bending when state.
Tibial membrane 25 is fixed on fixed frame 23 back on a side surface of freedom portion 22, and is covered and be suspended on fixed frame 23
The gap between oscillating plate and oscillating plate and fixed frame 23 in inner cavity seals the first cavity 11 and the second cavity 12 point
It separates.Tibial membrane 25 is generally fixed on by way of glue on fixed frame 23.
Electromagnetic mechanism 3 includes coil 31, the first magnetic occurs 32 and second magnetic of part and part 33 occurs, and coil 31 is fixed on the first chamber
It in body 11 and is set in freedom portion 22, the quantity that 32 and second magnetic of part generation part 33 occurs for the first magnetic is respectively one, the first magnetic
Part 32 occurs to be arranged in the first cavity 11 on the internal face of vibration section 21, for providing the first fixed magnetic field;Second magnetic
Part 33 occurs to be arranged in the second cavity 12 on the internal face of vibration section 21 on either the second bottom surface of the second cavity 12,
For providing the second fixed magnetic field.Part 32 occurs for the first magnetic and the position of the second magnetic generation part 33 is oppositely arranged, and opposite
On the contrary, on the direction set perpendicular to vibrating diaphragm mechanism 2, the first magnetic occurs 32 and second magnetic of part generation part 33 and distinguishes one end polarity
Required vibration gap is reserved between vibration section 21.
In the present embodiment, the first magnetic occurs 32 and second magnetic of part generation part 33 and is set close to freedom portion 22, and the first magnetic
Part 32 occurs along being parallel in the setting direction of vibrating diaphragm mechanism 2, with 31 preset clearance of coil, this is thinned to a certain extent
The thickness of first cavity 11.
The operation principle of the receiver is specially:
Assuming that it is N poles that part 32, which occurs, for the first magnetic close to one end of vibration section 21, part 33 occurs for the second magnetic close to vibration section 21
One end be S poles.Positive electricity is passed through to coil 31, according to electromagnetic induction principle, coil 31 generates electromagnetic field, is arranged by coil 31
Freedom portion 22 and the vibration section 21 that is connect with freedom portion 22 be magnetized, take polarity, it is assumed that vibration section 21 is N poles, then root
According to " magnetic pole of the same name is mutually exclusive, and synonyms pole attracts each other " principle, vibration section 21 occurred that part 32 provides by the first magnetic the
The repulsive force of one fixed magnetic field the second cavity 12 of direction, while the second fixed magnetic field direction provided by the second magnetic generation part 33
The attraction of second cavity 12, as a result, vibration section 21 vibrated towards the second cavity 12 by magnetic force;Opposite, to line
Circle 31 is passed through reversed electricity, and electromagnetism field direction changes, i.e., vibration section 21 becomes S poles, at this point, by the first magnetic part is occurred for vibration section 21
32 attractions of the first fixed magnetic fields the first cavity 11 of direction provided, while occurred the second of the offer of part 33 by the second magnetic and consolidate
Fixed-field towards the first cavity 11 repulsive force, as a result, vibration section 21 acted on down by field drives, shake towards the first cavity 11
It is dynamic.In this way, when being alternately passed through positive electric and reversed electricity to coil 31, the of reciprocating vibration of vibration section 21 is realized, and then agitate housing
Air sounding in inner cavity, sound blaze abroad through sound outlet hole 15 into sound guide tube 16.
Receiver provided in this embodiment, do not need to setting U-shaped balanced armature, vibrating diaphragm and connection U-shaped balanced armature and
The guide pin or drive link of vibrating diaphragm, it is only necessary to which the vibrating diaphragm mechanism 2 (tibial membrane 25 and oscillating plate are combined together) of an entirety is set
, simplify vibrating diaphragm mechanism 2 and the overall structure of receiver.By the coil for being set in freedom portion 22 in vibrating diaphragm mechanism 2
31 generate electromagnetic field, and then electromagnetic field interacts with fixed magnetic field, directly drive vibration section 21 and drive the vibration hair of tibial membrane 25
Sound, without by any drive apparatus such as guide pin or drive link, greatly reducing the vibratory response time, improving receiver
Sensitivity.
In the present embodiment, it is permanent magnet that the first magnetic, which occurs 32 and second magnetic of part and part 33 occurs,.
The assembly method (referred to as A assembly methods) of receiver in the present embodiment, includes the following steps:
S10:First magnetic generation part 32 is fixed on the internal face of first shell 13, coil 31 is fixed on first shell
On 13 internal face and avoid the first magnetic occur part 32;
Second magnetic generation part 33 is fixed on the internal face of second shell 14;
One end of oscillating plate is fixed on fixed frame 23, the other end is as free end vacantly in fixed frame 23, and will
Free end bends downward to form freedom portion 22 so that oscillating plate forms inverted l shape;Back to the one of freedom portion 22 on fixed frame 23
Tibial membrane 25 is fixed on side surface, and tibial membrane 25 is caused to cover the gap between oscillating plate and oscillating plate and fixed frame 23,
To form vibrating diaphragm mechanism 2.
S20:The outer edge of fixed frame 23 in vibrating diaphragm mechanism 2 is fixed in the opening of first shell 13, and caused freely
Portion 22 is stretched into coil 31.
S30:By the opening of second shell 14 be located in fixed frame 23 on a side surface of coil 31, and cause the
It is opposite with 33 position of the second magnetic generation part in second shell 14 that part 32 occurs for the first magnetic in one housing 13.
Part 32, coil 31 and first shell 13 are occurred for the first magnetic as the first module by the assembly method of the receiver,
Part 33 and second shell 14 are occurred into for the second magnetic as the second module, vibrating diaphragm mechanism 2 is used as third module, three individual modules
It is assembled, is finally assembled three modules, so as to fulfill the modular assembly of receiver respectively.Due to three modules point
Independent assembling is opened, therefore saves a large amount of assembly time, improves efficiency of assembling;Also, vibrating diaphragm mechanism 2 is used as an entirety
It is installed, without as being attached vibrating diaphragm and U-shaped balanced armature by drive link or guide pin in tradition, assembly difficulty is big
It is big to reduce, and in later period maintenance or performance detection, dismounting is also very convenient.
As deformation, tibial membrane 25 need not cover entire oscillating plate, between only covering between oscillating plate and fixed frame 23
Gap so that the first cavity 11 and 12 sealed separation of the second cavity are opened.
As deformation, the outer edge of fixed frame 23 is fixed on the internal face of first shell 13 in vibrating diaphragm mechanism 2, is generally adopted
The mode that sticks with glue or spot welding mode.
As deformation, the quantity that 32 and second magnetic of part generation part 33 occurs for the first magnetic can be multiple, for example, the first magnetic is sent out
32 and second magnetic of raw part occurs part 33 and is two or is three, can set according to actual needs, as long as meeting the first magnetic
Part 32 occurs to correspond, and opposite one end polarity is opposite with the second magnetic generation part 33.
Embodiment 2
The present embodiment provides the receiver provided in a kind of receiver, with embodiment 1 difference lies in:Vibrating diaphragm mechanism 2
Structure is different.
As shown in figure 3, vibrating diaphragm mechanism 2 includes fixed frame 23, tibial membrane 25 and vibrating body.
23 structure of fixed frame of receiver of the fixed frame 23 with being provided in embodiment 1 is identical, and details are not described herein.
Vibrating body includes oscillating plate, freedom portion 22 and connecting portion 24.As shown in Fig. 2, vibration of the oscillating plate as vibrating body
Portion 21, uses soft magnetic materials to be made, and one end is fixed on fixed frame 23, and the other end is vacantly in the inner cavity of fixed frame 23.It needs
Illustrate, oscillating plate is without bending, but integrated hanging is in 23 inner cavity of fixed frame.
Freedom portion 22 and connecting portion 24 are made of soft magnetic materials, and the two forms inverted l shape, and wherein connecting portion 24 is used as
Horizontal part in L structures is fixed on oscillating plate on the surface of 11 side of the first cavity, and freedom portion 22 is as in inverted L structure
Vertical portion is fixed on connecting portion 24 and perpendicular to connecting portion 24, i.e. freedom portion 22 is fixed on vibration section 21 by connecting portion 24
On;
Tibial membrane 25 is fixed on fixed frame 23 back on the surface of 22 side of freedom portion, and covers fixed frame 23 and vibration
Gap between plate.
In the present embodiment, one end far from freedom portion 22 is fixed on oscillating plate on connecting portion 24, rest part and vibration
Gap is formed between portion 21;
In the present embodiment, freedom portion 22 and connecting portion 24 are an integral molding structure or for separate structures.
The operation principle of receiver in the present embodiment is specially:
Assuming that it is N poles that part 32, which occurs, for the first magnetic close to one end of vibration section 21, part 33 occurs for the second magnetic close to vibration section 21
One end be S poles.Positive electricity is passed through to coil 31, according to electromagnetic induction principle, coil 31 generates electromagnetic field, is arranged by coil 31
Freedom portion 22 and the connecting portion 24 that is connected with freedom portion 22 be magnetized, take polarity, it is assumed that connecting portion 24 is N poles, then root
According to " magnetic pole of the same name is mutually exclusive, and synonyms pole attracts each other " principle, connecting portion 24 occurred that part 32 provides by the first magnetic the
The repulsive force of one fixed magnetic field the second cavity 12 of direction, while the second fixed magnetic field direction provided by the second magnetic generation part 33
The attraction of second cavity 12, as a result, connecting portion 24 vibration section 21 is driven to shake towards the second cavity 12 by magnetic force
It is dynamic;It is opposite, be passed through reversed electricity to coil 31, electromagnetism field direction changes, i.e., connecting portion 24 becomes S poles, at this point, connecting portion 24 by
The first fixed magnetic field of the offer of part 32 occurs to the first magnetic, part occurs towards the attraction of the first cavity 11, while by the second magnetic
33 provide the second fixed magnetic fields towards the first cavity 11 repulsive forces, as a result, connecting portion 24 acted on down by field drives, drive
Vibration section 21 is vibrated towards the first cavity 11.In this way, when being alternately passed through positive electric and reversed electricity to coil 31, vibration section 21 is realized
It is of reciprocating vibration, and then agitate the air sounding in housing cavity, sound blazes abroad through sound outlet hole 15 into sound guide tube 16.
Area of the assembly method (referred to as B assembly methods) of receiver in the present embodiment with A assembly methods in embodiment 1
It is not:In S10 steps, the assembly method of vibrating diaphragm mechanism 2 is different, and the assembly method of vibrating diaphragm mechanism 2 is in the present embodiment:
One end of oscillating plate is fixed on fixed frame 23, the other end is as free end vacantly in fixed frame 23;It is shaking
The connecting portion 24 in soft magnetic bodies made of inverted l shape soft magnetic materials is fixedly mounted on one side surface of movable plate, with 24 phase of connecting portion
Freedom portion 22 even is hanging;Back to fixing tibial membrane 25 on a side surface of freedom portion 22, and cause pronunciation on fixed frame 23
Film 25 covers the gap between oscillating plate and oscillating plate and fixed frame 23.
Embodiment 3
The present embodiment provides a kind of receivers, compared with any one receiver provided in embodiment 1 or embodiment 2, area
It is not:The fixed position of fixed frame 23 is different.
In the present embodiment, the outer edge of fixed frame 23 is fixed on the internal face of second shell 14 in vibrating diaphragm mechanism 2.
Area of the assembly method (referred to as C assembly methods) of receiver with A assembly methods or B assembly methods in the present embodiment
It is not:
In S20 steps, the outer edge of fixed frame 23 in vibrating diaphragm mechanism 2 is fixed on the internal face of second shell 14, and
It avoids the second magnetic and part 33 occurs;
In S30 steps, the opening of second shell 14 is located in into the opening of first shell 13, and cause first shell 13
Interior the first magnetic generation part 32 is opposite with 33 position of the second magnetic generation part in second shell 14, while causes in second shell 14
Freedom portion 22 in vibrating diaphragm mechanism 2 is stretched into the coil 31 in first shell 13.
Embodiment 4
The present embodiment provides the receivers provided in any embodiment in a kind of receiver, with embodiment 1 to embodiment 3
Difference lies in:The structure of vibrating diaphragm mechanism 2 is different.
Vibrating diaphragm mechanism 2 only includes vibrating body, and vibrating body includes oscillating plate, freedom portion 22 and connecting portion 24.
Oscillating plate is made, neighboring is fixed on first shell 13 as vibration section 21 of elastic non-magnet material
Between the opening of second shell 14;The freedom portion 22 and connecting portion of freedom portion 22 and connecting portion 24 and receiver in embodiment 2
24 structures are identical, and details are not described herein.
During receiver work in the present embodiment, freedom portion 22 and connecting portion 24 directly drive vibration section 21 in the lumen on
Under it is of reciprocating vibration, and then agitate air sounding, which eliminates fixed frame 23 and tibial membrane 25, and structure is simpler.
Area of the assembly method (referred to as D assembly methods) of receiver in the present embodiment with B assembly methods in embodiment 2
It is not:In S10 steps, the assembly method of vibrating diaphragm mechanism 2 is different, only needed when vibrating diaphragm mechanism 2 is assembled in the present embodiment by
The connecting portion 24 in soft magnetic bodies made of inverted l shape soft magnetic materials is fixedly mounted on a side surface of oscillating plate, with connecting portion
24 connected freedom portion 22 are hanging.It eliminates the step for fixing oscillating plate and fixed frame 23 and fixes tibial membrane 25
Step.
As deformation, the neighboring of oscillating plate may be also secured at the internal face of first shell 13 or second shell 14
On.
Embodiment 5
The present embodiment provides the receiver provided in a kind of receiver, with embodiment 2 or embodiment 4 difference lies in:Such as
Shown in Fig. 4, connecting portion 24 is not provided with, i.e., freedom portion 22 is directly fixedly connected with oscillating plate made of soft magnetic materials.
The receiver operation principle of the structure is specially:
Assuming that it is N poles that part 32, which occurs, for the first magnetic close to one end of vibration section 21, part 33 occurs for the second magnetic close to vibration section 21
One end be S poles.Positive electricity is passed through to coil 31, according to electromagnetic induction principle, coil 31 generates electromagnetic field, is arranged by coil 31
Freedom portion 22 be magnetized, generate electromagnetic field, it is assumed that close to one end of vibration section 21 for N poles, according to the active force between magnetic field,
By the first magnetic the first fixed magnetic field of the offer of part 32 is occurred for electromagnetic field towards the repulsive force of the second cavity 12, while by second
Magnetic occur part 33 provide the second fixed magnetic field towards the second cavity 12 attraction, i.e. freedom portion 22 under magnetic force,
Vibration section 21 is driven to be vibrated towards the second cavity 12;Opposite, reversed electricity is passed through to coil 31, electromagnetism field direction changes, that is, leans on
One end of nearly vibration section 21 is S poles, at this point, the first fixed magnetic field direction first of the offer of part 32 is occurred by the first magnetic for electromagnetic field
The attraction of cavity 11, while the second fixed magnetic field of the offer of part 33 is occurred towards the repulsion of the first cavity 11 by the second magnetic
Power, i.e. freedom portion 22 drive vibration section 21 to be vibrated towards the first cavity 11 under magnetic fields.It is in this way, alternately logical to coil 31
When entering positive electric and reversed electricity, the of reciprocating vibration of vibration section 21 is realized, and then agitate the air sounding in housing cavity, sound warp
Sound outlet hole 15 blazes abroad into sound guide tube 16.
The assembly method of receiver provided in this embodiment is distinguished compared with above-mentioned B assembly methods and D assembly methods
In:
In S10 steps, freedom portion 22 is directly fixedly connected with oscillating plate, without by connecting portion 24 by freedom portion 22
It is fixed on oscillating plate.
Embodiment 6
The present embodiment provides a kind of receivers, compared with any one receiver provided in embodiment 1 to embodiment 5, area
It is not:As shown in figure 5, part 32 occurs for the first magnetic and the fixed position difference of part 33 occurs for the second magnetic.
In the present embodiment, the first magnetic occur part 32 be arranged between vibration section 21 and coil 31, and respectively with vibration section 21
Vibration gap is reserved between coil 31;Second magnetic occurs part 33 and is then arranged in the second cavity 12 and the first magnetic generation 32 phase of part
To position.
The first magnetic occurs 32 and second magnetic of part and part 33 occurs closer to the freedom portion 22 being arranged by coil 31 as a result, but gives
After coil 31 is powered, with the first magnetic consolidating for 32 and second magnetic of the part generation offer of part 33 can occur for the electromagnetic field that freedom portion 22 generates
Fixed-field more directly acts on, and strengthens magnetic field intermolecular forces, so as to enhance the Oscillation Amplitude of vibration section 21, sounding effect with
And the sensitivity of vibration.
Embodiment 7
The present embodiment provides a kind of receivers, compared with any one receiver provided in embodiment 1 to embodiment 6, area
It is not:
First magnetic occurs 32 and second magnetic of part generation part 33 and is made of coil.When receiver works, occur to the first magnetic
32 and second magnetic of part occurs part 33 and provides direction constant electric current respectively, and according to electromagnetic induction principle, 32 He of part occurs for the first magnetic
Part 33 occurs for the second magnetic can generate the first fixed magnetic field and the second fixed magnetic field respectively, as long as ensureing the first fixed magnetic field and second
The opposite one end polarity of fixed magnetic field is opposite.
Embodiment 8
The present embodiment provides a kind of receivers, compared with any one receiver provided in embodiment 1 to embodiment 7, area
It is not:Only the first magnetic of setting occurs part 32 or only sets the second magnetic that part 33 occurs.
When only setting the first magnetic that part 32 occurs, when receiver works, vibration section 21 is only occurred part 32 by the first magnetic and carries
The repulsive force or attraction that the first fixed magnetic field supplied applies, can also realize vibration sounding function.
When only setting the second magnetic that part 33 occurs, when receiver works, vibration section 21 is only occurred part 33 by the second magnetic and carries
The repulsive force or attraction that the second fixed magnetic field supplied applies, can also realize vibration sounding function.
Obviously, the above embodiments are merely examples for clarifying the description, and is not intended to limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And the obvious variation thus extended out or
Among the protection domain that variation is created still in the utility model.